Best King Size Mattress

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Searching for the best king size mattress? At 76″ wide by 80″ long, these beds are great for sleepers wanting extra space. Maybe you sleep with a partner and want to spread out, or maybe you’re looking for a larger mattress to balance out a master bedroom. To help you find a bed that makes sense for your lifestyle and preferences, I’ve listed the best king mattresses below. At the bottom of the page, I’ve included the mattresses in a chart so you can compare prices.

Best King Size Mattresses

Our Methodology

Our team of Certified Sleep Science Coaches has reviewed more than 220 products in our mattress lab, running each one through tests such as pressure-mapping and measuring motion transfer with a seismometer. From there, we give every bed an overall score based on materials, comfort, support, cooling, and edge support. We also factor in brand performance with categories such as value and warranty.

Since mattress size isn’t one of our categories, we looked at how much each of these beds costs for a king, then weighed that against its overall score. In an effort to recommend the highest-quality mattresses, we chose products with a score of 4 out of 5 or higher. Click here to learn more about our methodology.

DreamCloud Premier Mattress Helix Midnight Luxe Mattress WinkBed Mattress Saatva Mattress Nolah Evolution Hybrid Mattress Bear Mattress Brooklyn Bedding Signature Hybrid Mattress Birch Mattress Titan Plus Emma CliMax Hybrid
DreamCloud Premier Mattress Helix Midnight Luxe Mattress WinkBed Mattress Saatva Mattress Nolah Evolution Hybrid Mattress Bear Mattress Brooklyn Bedding Signature Hybrid Mattress Birch Mattress Titan Plus Emma CliMax Hybrid
Rating
Firmness Medium-firm: 6.5/10 Soft: 6/10 Multiple firmness options Multiple firmness options Multiple firmness options Medium-firm: 7/10 Multiple firmness options Medium-firm: 7/10 Firm: 7.5/10 Firm: 7.5/10
Material Hybrid Hybrid Hybrid Innerspring Hybrid Foam Hybrid Hybrid Hybrid Hybrid
Cooling -- -- -- -- --
Sleep Position Back & Side Combination Back & Stomach Back & Stomach Back & Side Back Back Back & Stomach Back & Stomach Back & Stomach

Best Luxury King Size Mattress – DreamCloud Premier

Best Luxury King Size Mattress

DreamCloud Premier Mattress

dreamcloud premier 1

The DreamCloud Premier is a hybrid, bed-in-a-box mattress that feels very luxurious and offers lots of firm support and soft pressure relief. It's a great choice for back sleepers and combination sleepers, who should appreciate its responsiveness.

Sleepopolis Score 4.8/5
Read DreamCloud Premier Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyTrialPeriod

Trial Period

365 nights

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyFirmness

Firmness

Medium-firm: 6.5/10

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight back sleepers.
SO sleeper type side sleepers
Side Sleeping
Ideal for lightweight side sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.6/5
Best Luxury King Size Mattress

DreamCloud Premier Mattress

dreamcloud premier 1

The DreamCloud Premier is a hybrid, bed-in-a-box mattress that feels very luxurious and offers lots of firm support and soft pressure relief. It's a great choice for back sleepers and combination sleepers, who should appreciate its responsiveness.

Sleepopolis Score 4.8/5
Read DreamCloud Premier Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyFirmness

Firmness

Medium-firm: 6.5/10

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyTrialPeriod

Trial Period

365 nights

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight back sleepers.
SO sleeper type side sleepers
Side Sleeping
Ideal for lightweight side sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.6/5
dreamcloud premier 1
Best Luxury King Size Mattress

DreamCloud Premier Mattress

The DreamCloud Premier is a hybrid, bed-in-a-box mattress that feels very luxurious and offers lots of firm support and soft pressure relief. It's a great choice for back sleepers and combination sleepers, who should appreciate its responsiveness.

Sleepopolis Score 4.8/5
Read DreamCloud Premier Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyFirmness

Firmness

Medium-firm: 6.5/10

SO Brand Icon PropertyTrialPeriod

Trial Period

365 nights

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight back sleepers.
SO sleeper type side sleepers
Side Sleeping
Ideal for lightweight side sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.6/5

The king size DreamCloud Premier has numerous luxurious touches, from a gel foam comfort layer below to a quilted cover and Euro pillow-top. While the pillow-top results in a super-soft feel, the mattress’ pocketed coil support layer and high-density foam base layer mean there’s adequate support.

At 15″ tall, the DreamCloud Premier is fit for side and back sleepers wanting extra cushion around their pressure points. Those struggling with back pain should find a lot to love; the bed’s foam fills in the lumbar region and promotes proper spinal alignment. In addition, the DreamCloud Premier offers great motion isolation and edge support, making it a match for couples. Your restless partner shouldn’t disturb you, and you should be able to spread out over the entire mattress.

Strict stomach sleepers probably need a firmer, more supportive bed.

Sold on the DreamCloud Premier? You can also click here for the best deal, or check out the full DreamCloud Premier mattress review.

Still deciding? Take a look at our other picks for the best luxury mattresses!

Best King Size Mattress for Side Sleepers – Helix Midnight Luxe

Best for Side Sleepers

Helix Midnight Luxe Mattress

P1039725 scaled e1662583869146

The Helix Midnight Luxe is a supportive mattress that's great for back sleepers. The Midnight Luxe’s thick comfort layer of memory foam provides plenty of pressure relief and contouring while the zoned coils offer a great deal of support.

Sleepopolis Score 4.3/5
Read Helix Midnight Luxe Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyTrialPeriod

Trial Period

100 nights

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyFirmness

Firmness

Soft: 6/10

SO Brand Icon MattressWarranty

Warranty

15-year warranty

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type back sleepers
Back Sleeping
Ideal for average weight and heavyweight back sleepers.
SO sleeper type side sleepers
Side Sleeping
Ideal for average weight and heavyweight side sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for lightweight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
Best for Side Sleepers

Helix Midnight Luxe Mattress

P1039725 scaled e1662583869146

The Helix Midnight Luxe is a supportive mattress that's great for back sleepers. The Midnight Luxe’s thick comfort layer of memory foam provides plenty of pressure relief and contouring while the zoned coils offer a great deal of support.

Sleepopolis Score 4.3/5
Read Helix Midnight Luxe Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon MattressWarranty

Warranty

15-year warranty

SO Brand Icon PropertyFirmness

Firmness

Soft: 6/10

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyTrialPeriod

Trial Period

100 nights

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type back sleepers
Back Sleeping
Ideal for average weight and heavyweight back sleepers.
SO sleeper type side sleepers
Side Sleeping
Ideal for average weight and heavyweight side sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for lightweight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
P1039725 scaled e1662583869146
Best for Side Sleepers

Helix Midnight Luxe Mattress

The Helix Midnight Luxe is a supportive mattress that's great for back sleepers. The Midnight Luxe’s thick comfort layer of memory foam provides plenty of pressure relief and contouring while the zoned coils offer a great deal of support.

Sleepopolis Score 4.3/5
Read Helix Midnight Luxe Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyFirmness

Firmness

Soft: 6/10

SO Brand Icon PropertyTrialPeriod

Trial Period

100 nights

SO Brand Icon MattressWarranty

Warranty

15-year warranty

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type back sleepers
Back Sleeping
Ideal for average weight and heavyweight back sleepers.
SO sleeper type side sleepers
Side Sleeping
Ideal for average weight and heavyweight side sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for lightweight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5

Helix is known for its line of customizable mattresses, and we’re especially drawn to the hybrid Midnight Luxe for side sleepers. This king size bed starts with a breathable Tencel cover and includes two more inches of comfort foam than the standard Helix Midnight. That means side sleepers should feel some pressure relief around their shoulders and hips shortly after they lie down. This mattress even has zoned construction, so it should be extra-soft around the shoulders to prevent stiffness.

A medium-firm product, the Helix Midnight Luxe’s blend of comfort and support also makes it a solid option for back sleepers and combination sleepers. For those eco-friendly shoppers and hot sleepers out there, the Midnight Luxe uses recycled and breathable materials

Stomach sleepers and heavier sleepers over 250 lb probably won’t find proper support on the Midnight Luxe. These sleepers should check out the firmer Helix Dawn or our roundup of the best mattresses for stomach sleepers.

Is the Helix Midnight Luxe the king mattress of your dreams? Read our Helix Midnight Luxe mattress review. Or you can click here to get the best deal.

Best King Size Mattress for Couples – WinkBeds

Best King Size Mattress for Couples

WinkBed Mattress

winkbed

The WinkBed is a hybrid mattress that comes in three firmness levels, so most sleepers should find a model that suits their needs. It could also be a good fit for couples, thanks to reinforced edge support.

Sleepopolis Score 4.8/5
Read WinkBed Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back pain
Back Pain
This bed is perfect for anyone suffering from back pain.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight and average weight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for average weight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.6/5
Watch Our Video Review
Best King Size Mattress for Couples

WinkBed Mattress

winkbed

The WinkBed is a hybrid mattress that comes in three firmness levels, so most sleepers should find a model that suits their needs. It could also be a good fit for couples, thanks to reinforced edge support.

Sleepopolis Score 4.8/5
Read WinkBed Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back pain
Back Pain
This bed is perfect for anyone suffering from back pain.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight and average weight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for average weight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.6/5
Watch Our Video Review
winkbed
Best King Size Mattress for Couples

WinkBed Mattress

The WinkBed is a hybrid mattress that comes in three firmness levels, so most sleepers should find a model that suits their needs. It could also be a good fit for couples, thanks to reinforced edge support.

Sleepopolis Score 4.8/5
Read WinkBed Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back pain
Back Pain
This bed is perfect for anyone suffering from back pain.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight and average weight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for average weight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.6/5
Watch Our Video Review

This pillow-top hybrid mattress by WinkBeds is a match made in heaven for couples. It has great edge support, so you can use the entire surface without feeling like its sides might collapse. The WinkBed is also bouncy and supportive, which are nice perks for sex, and the bed’s comfort foams are infused with cooling gels that work to prevent the trapping of body heat. A versatile brand, the WinkBed is available in Softer, Luxury Firm, Firmer, and Plus versions. Back sleepers should feel supported on the Luxury Firm and Firmer models while side sleepers should get the contouring they need from the Softer model. 

The hybrid construction makes the WinkBed a fairly responsive mattress, so it may not be the best fit for those who want the slow-moving feel of memory foam. 

Is the WinkBeds the perfect bed for you and your partner? Click here to get the best deal, or read our full WinkBeds mattress review.

Need to continue searching? Check out my other picks for the best mattress for couples.

Best King Size Mattress for Back Pain – Saatva

Best King Size Mattress for Back Pain

Saatva Mattress

P1051102

The Saatva’s coil-on-coil construction provides a classic innerspring feel. It's a good option for combo sleepers, who will want to feel free to switch positions and avoid feeling “stuck” in the mattress. It comes in three firmness levels, so you should be able to find one that suits your needs.

Sleepopolis Score 4.8/5
Read Saatva Mattress Review
SO Brand Icon MattressMaterial

Material

Innerspring

SO Brand Icon PropertyTrialPeriod

Trial Period

365 nights

SO Brand Icon PropertyShipping

Shipping Method

Free white glove delivery

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back pain
Back Pain
This bed is perfect for anyone suffering from back pain.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.9/5
Watch Our Video Review
Best King Size Mattress for Back Pain

Saatva Mattress

P1051102

The Saatva’s coil-on-coil construction provides a classic innerspring feel. It's a good option for combo sleepers, who will want to feel free to switch positions and avoid feeling “stuck” in the mattress. It comes in three firmness levels, so you should be able to find one that suits your needs.

Sleepopolis Score 4.8/5
Read Saatva Mattress Review
SO Brand Icon MattressMaterial

Material

Innerspring

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon PropertyShipping

Shipping Method

Free white glove delivery

SO Brand Icon PropertyTrialPeriod

Trial Period

365 nights

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back pain
Back Pain
This bed is perfect for anyone suffering from back pain.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.9/5
Watch Our Video Review
P1051102
Best King Size Mattress for Back Pain

Saatva Mattress

The Saatva’s coil-on-coil construction provides a classic innerspring feel. It's a good option for combo sleepers, who will want to feel free to switch positions and avoid feeling “stuck” in the mattress. It comes in three firmness levels, so you should be able to find one that suits your needs.

Sleepopolis Score 4.8/5
Read Saatva Mattress Review
SO Brand Icon MattressMaterial

Material

Innerspring

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon PropertyTrialPeriod

Trial Period

365 nights

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyShipping

Shipping Method

Free white glove delivery

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back pain
Back Pain
This bed is perfect for anyone suffering from back pain.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight, average weight, and heavyweight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for lightweight and average weight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.9/5
Watch Our Video Review

The Saatva’s bouncy innerspring construction offers firm support, keeping your spine aligned. Its durable steel coils in the support layer prevent sagging, a factor that can contribute to back pain. Hot sleepers should especially like the breathable innerspring construction. We also love how the Saatva offers three firmness levels (Plush Soft, Firm, and Luxury Firm), so it should work for most sleepers. Those with back pain should opt for the Firm or Luxury Firm.

If you sleep with a partner or pet and are easily disturbed by their movements, consider a mattress with better motion isolation. 

Think you’ve found the relief you need? Read our full Saatva mattress review. You can also click here for the best deal.

Still searching for a remedy? Check out more picks for the best mattress for back pain.

Best Soft King Size Mattress – Nolah Evolution

Best Soft King Size Mattress

Nolah Evolution Hybrid Mattress

P1055841

The Nolah Evolution provides good pressure relief and body contouring. It’s a great choice for side sleepers, and back sleepers who like a softer mattress will enjoy it too. The soft pillow top is a great touch for shoulder or hip pain as well.

Sleepopolis Score 4.4/5
Read Nolah Evolution Hybrid Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight and average weight back sleepers.
SO sleeper type side sleepers
Side Sleeping
Ideal for lightweight and average weight side sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.8/5
Watch Our Video Review
Best Soft King Size Mattress

Nolah Evolution Hybrid Mattress

P1055841

The Nolah Evolution provides good pressure relief and body contouring. It’s a great choice for side sleepers, and back sleepers who like a softer mattress will enjoy it too. The soft pillow top is a great touch for shoulder or hip pain as well.

Sleepopolis Score 4.4/5
Read Nolah Evolution Hybrid Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight and average weight back sleepers.
SO sleeper type side sleepers
Side Sleeping
Ideal for lightweight and average weight side sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.8/5
Watch Our Video Review
P1055841
Best Soft King Size Mattress

Nolah Evolution Hybrid Mattress

The Nolah Evolution provides good pressure relief and body contouring. It’s a great choice for side sleepers, and back sleepers who like a softer mattress will enjoy it too. The soft pillow top is a great touch for shoulder or hip pain as well.

Sleepopolis Score 4.4/5
Read Nolah Evolution Hybrid Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight and average weight back sleepers.
SO sleeper type side sleepers
Side Sleeping
Ideal for lightweight and average weight side sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.8/5
Watch Our Video Review

A 6 out of 10 on the firmness scale, the Nolah Evolution is a soft mattress with lots of contouring and pressure relief. The plushness comes from the brand’s proprietary AirFoamICE, letting you comfortably sink in the mattress. With breathable foam and airflow-promoting coils at the bottom, the Nolah Evolution is great for hot sleepers. The Nolah Evolution is also adept at relieving hip and shoulder pain, making it an excellent fit for side sleepers. Back sleepers preferring a softer mattress should love the 8” layer of support coils.

Heavy stomach sleepers over 250 lb need a more supportive mattress than the Nolah.

Think the Nolah Evolution is plush enough for you? Read our full Nolah Evolution mattress review. You can also click here for the best deal.

Not sold just yet? See our other picks for best soft mattresses.

Best King Size Mattress for Hot Sleepers – Bear

Best King Size Mattress for Hot Sleepers

Bear Mattress

bear original

I appreciate the firm and responsive feel of the Bear mattress. Its combination of support and pressure relief makes it an awesome option for anyone struggling with back pain. The Celliant cover also does a great job of keeping the mattress cool.

Sleepopolis Score 4.3/5
Read Bear Mattress Review
SO Brand Icon MattressMaterial

Material

Foam

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyFirmness

Firmness

Medium-firm: 7/10

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight and average weight back sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
Watch Our Video Review
Best King Size Mattress for Hot Sleepers

Bear Mattress

bear original

I appreciate the firm and responsive feel of the Bear mattress. Its combination of support and pressure relief makes it an awesome option for anyone struggling with back pain. The Celliant cover also does a great job of keeping the mattress cool.

Sleepopolis Score 4.3/5
Read Bear Mattress Review
SO Brand Icon MattressMaterial

Material

Foam

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyFirmness

Firmness

Medium-firm: 7/10

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight and average weight back sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
Watch Our Video Review
bear original
Best King Size Mattress for Hot Sleepers

Bear Mattress

I appreciate the firm and responsive feel of the Bear mattress. Its combination of support and pressure relief makes it an awesome option for anyone struggling with back pain. The Celliant cover also does a great job of keeping the mattress cool.

Sleepopolis Score 4.3/5
Read Bear Mattress Review
SO Brand Icon MattressMaterial

Material

Foam

SO Brand Icon PropertyFirmness

Firmness

Medium-firm: 7/10

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon MattressWarranty

Warranty

Lifetime warranty

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back sleepers
Back Sleeping
Ideal for lightweight and average weight back sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
Watch Our Video Review

A great option for hot sleepers in need of a king size mattress, the Bear uses gel infusions in its all-foam construction to help it keep a low temperature. It also has a cover made of Celliant, a soft and breathable material that assists with airflow. Another bonus of Celliant is that some believe that it promotes muscle recovery and blood flow, making the Bear a popular choice among athletes. 

Despite being a memory foam mattress, the Bear is fairly firm, clocking in at a 7/10 on our firmness scale. We think there’s enough firmness and support here for back sleepers (who need a slight lift while they sleep) and combination sleepers (who need a responsive bed that makes it easy to change positions). That being said, strict side sleepers may need something softer and strict stomach sleepers may need something firmer.

Is the Bear the right mattress to keep you cool at night? Read our full Bear mattress review. You can also click here to get the best deal.

Still looking? View our top picks for the best cooling mattress!

Best King Size Mattress for Back Sleepers – Brooklyn Bedding Signature Hybrid

Best King Size Mattress for Back Sleepers

Brooklyn Bedding Signature Hybrid Mattress

P1063020

The Brooklyn Bedding Signature Hybrid is a hybrid mattress made out of a combination of memory foam and latex foam. The Signature offers a good amount of comfort and support for back sleepers.

Sleepopolis Score 4.5/5
Read Brooklyn Bedding Signature Hybrid Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon MattressWarranty

Warranty

10-year warranty

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back sleepers
Back Sleeping
Ideal for average weight back sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
Watch Our Video Review
Best King Size Mattress for Back Sleepers

Brooklyn Bedding Signature Hybrid Mattress

P1063020

The Brooklyn Bedding Signature Hybrid is a hybrid mattress made out of a combination of memory foam and latex foam. The Signature offers a good amount of comfort and support for back sleepers.

Sleepopolis Score 4.5/5
Read Brooklyn Bedding Signature Hybrid Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon MattressWarranty

Warranty

10-year warranty

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back sleepers
Back Sleeping
Ideal for average weight back sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
Watch Our Video Review
P1063020
Best King Size Mattress for Back Sleepers

Brooklyn Bedding Signature Hybrid Mattress

The Brooklyn Bedding Signature Hybrid is a hybrid mattress made out of a combination of memory foam and latex foam. The Signature offers a good amount of comfort and support for back sleepers.

Sleepopolis Score 4.5/5
Read Brooklyn Bedding Signature Hybrid Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyFirmness

Firmness

Multiple firmness options

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon MattressWarranty

Warranty

10-year warranty

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back sleepers
Back Sleeping
Ideal for average weight back sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
Watch Our Video Review

This medium-firm mattress combines pressure relief and support for back sleepers. It should keep their spines neutrally aligned, thanks to a foam comfort layer and a support layer with individually encased coils. Quilted with memory foam, this bed is extremely comfy and should give sleepers pressure relief as soon as they lie down. Combination sleepers should also like the bed’s “on top of” feel; the Signature Hybrid’s comfort layer blends contouring memory foam with responsive latex foam.

The Brooklyn Bedding Signature Hybrid doesn’t have many lavish features. If you prefer a luxury bed, you may want to look at other options.

Want to know more? We’ve got a Brooklyn Bedding Signature Hybrid full review. You can also click here to get our best deal.

Still looking? Browse our top picks for best mattress for back sleepers!

Best Organic King Size Mattress – Birch Natural

Best Organic King Size Mattress

Birch Mattress

Birch Mattress 1

The Birch mattress is an all-natural bed that uses organic cotton and wool fibers to create a structure that’s as eco-friendly as it is cozy.

Sleepopolis Score 4.1/5
Read Birch Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyTrialPeriod

Trial Period

100 nights

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyFirmness

Firmness

Medium-firm: 7/10

SO Brand Icon MattressWarranty

Warranty

25-year warranty

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back sleepers
Back Sleeping
Ideal for average weight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for average weight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.8/5
Watch Our Video Review
Best Organic King Size Mattress

Birch Mattress

Birch Mattress 1

The Birch mattress is an all-natural bed that uses organic cotton and wool fibers to create a structure that’s as eco-friendly as it is cozy.

Sleepopolis Score 4.1/5
Read Birch Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon MattressWarranty

Warranty

25-year warranty

SO Brand Icon PropertyFirmness

Firmness

Medium-firm: 7/10

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyTrialPeriod

Trial Period

100 nights

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back sleepers
Back Sleeping
Ideal for average weight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for average weight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.8/5
Watch Our Video Review
Birch Mattress 1
Best Organic King Size Mattress

Birch Mattress

The Birch mattress is an all-natural bed that uses organic cotton and wool fibers to create a structure that’s as eco-friendly as it is cozy.

Sleepopolis Score 4.1/5
Read Birch Mattress Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyFirmness

Firmness

Medium-firm: 7/10

SO Brand Icon PropertyTrialPeriod

Trial Period

100 nights

SO Brand Icon MattressWarranty

Warranty

25-year warranty

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type hot sleepers
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
SO sleeper type back sleepers
Back Sleeping
Ideal for average weight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for average weight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.8/5
Watch Our Video Review

If you’re an eco-conscious sleeper searching for a king bed, you’ll love Birch’s original mattress. The cover is made of organic cotton and organic wool, making it breathable and fire-retardant. The comfort layer of organic wool assists with cooling due to its moisture-wicking properties. Beneath lies a responsive transition layer of Talalay latex, which is all-natural and cooling.

We think this bed best suits back and stomach sleepers, as the Birch Natural offers a firmer feel. 

Think this could be the perfect mattress for you? Read our full Birch review. You can also click here to get the best deal.

And if you’re still searching, see our roundup of the best organic mattresses.

Best King Size Mattress for Heavy Sleepers – Titan Plus

Best King Size Mattress for Heavy Sleepers

Titan Plus

P1063110

The Titan Firm Hybrid from Brooklyn Bedding is a durable mattress featuring 6-inch heavy-duty support coils, making it a great option for heavier sleepers. This mattress also has a Titanflex foam comfort layer, which provides nice lift and bounce for heavier weights.

Sleepopolis Score 4.3/5
Read Titan Plus Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyFirmness

Firmness

Firm: 7.5/10

SO Brand Icon MattressWarranty

Warranty

10-year warranty

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back pain
Back Pain
This bed is perfect for anyone suffering from back pain.
SO sleeper type back sleepers
Back Sleeping
Ideal for heavyweight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for heavyweight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
Watch Our Video Review
Best King Size Mattress for Heavy Sleepers

Titan Plus

P1063110

The Titan Firm Hybrid from Brooklyn Bedding is a durable mattress featuring 6-inch heavy-duty support coils, making it a great option for heavier sleepers. This mattress also has a Titanflex foam comfort layer, which provides nice lift and bounce for heavier weights.

Sleepopolis Score 4.3/5
Read Titan Plus Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon MattressWarranty

Warranty

10-year warranty

SO Brand Icon PropertyFirmness

Firmness

Firm: 7.5/10

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back pain
Back Pain
This bed is perfect for anyone suffering from back pain.
SO sleeper type back sleepers
Back Sleeping
Ideal for heavyweight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for heavyweight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
Watch Our Video Review
P1063110
Best King Size Mattress for Heavy Sleepers

Titan Plus

The Titan Firm Hybrid from Brooklyn Bedding is a durable mattress featuring 6-inch heavy-duty support coils, making it a great option for heavier sleepers. This mattress also has a Titanflex foam comfort layer, which provides nice lift and bounce for heavier weights.

Sleepopolis Score 4.3/5
Read Titan Plus Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyFirmness

Firmness

Firm: 7.5/10

SO Brand Icon PropertyTrialPeriod

Trial Period

120 nights

SO Brand Icon MattressWarranty

Warranty

10-year warranty

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back pain
Back Pain
This bed is perfect for anyone suffering from back pain.
SO sleeper type back sleepers
Back Sleeping
Ideal for heavyweight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for heavyweight stomach sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
Watch Our Video Review

A king size mattress is a great option for sleepers with larger bodies, as it gives them plenty of room to spread out. But heavy sleepers will also want to make sure they have adequate support, which they’re bound to get in the Titan Plus.

Designed by Brooklyn Bedding with heavier sleepers in mind, the Titan Plus is built with extremely durable materials. The comfort layer contains Titanflex foam, a proprietary material similar to latex. It’s bouncy, responsive, and supportive, while also giving heavy people a bit of pressure relief. In the center of the mattress, a support layer of TitanCaliber-encased coils should keep these folks lifted, preventing them from sinking too far into the mattress.

While we can see the Titan Plus mattress being a good fit for heavy people of all sleeping positions (although heavy side sleepers may want to add a mattress topper for extra pressure relief), it could also be comfortable for average-weight back sleepers and stomach sleepers.

If you think this mattress is the best fit for you, read more our about it in our full Titan Plus review. You can also click here to get the best deal.

Or if you’re still on the lookout for the perfect bed, see our roundup of the best mattresses for heavy people.

Best Hybrid King Size Mattress – Emma CliMax Hybrid

Best Hybrid King Size Mattress

Emma CliMax Hybrid

P1055849 scaled

The Emma CliMax Hybrid is a firm, supportive, and bouncy mattress. Emma designed it with two specific groups in mind: couples and plus-sized sleepers.

Sleepopolis Score 4.4/5
Read Emma CliMax Hybrid Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyTrialPeriod

Trial Period

365 nights

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyFirmness

Firmness

Firm: 7.5/10

SO Brand Icon MattressWarranty

Warranty

10-year warranty

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back sleepers
Back Sleeping
Ideal for average weight and heavyweight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for lightweight stomach sleepers.
Average Customer Rating
/5
Watch Our Video Review
Best Hybrid King Size Mattress

Emma CliMax Hybrid

P1055849 scaled

The Emma CliMax Hybrid is a firm, supportive, and bouncy mattress. Emma designed it with two specific groups in mind: couples and plus-sized sleepers.

Sleepopolis Score 4.4/5
Read Emma CliMax Hybrid Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon MattressWarranty

Warranty

10-year warranty

SO Brand Icon PropertyFirmness

Firmness

Firm: 7.5/10

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyTrialPeriod

Trial Period

365 nights

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back sleepers
Back Sleeping
Ideal for average weight and heavyweight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for lightweight stomach sleepers.
Average Customer Rating
/5
Watch Our Video Review
P1055849 scaled
Best Hybrid King Size Mattress

Emma CliMax Hybrid

The Emma CliMax Hybrid is a firm, supportive, and bouncy mattress. Emma designed it with two specific groups in mind: couples and plus-sized sleepers.

Sleepopolis Score 4.4/5
Read Emma CliMax Hybrid Review
SO Brand Icon MattressMaterial

Material

Hybrid

SO Brand Icon PropertyFirmness

Firmness

Firm: 7.5/10

SO Brand Icon PropertyTrialPeriod

Trial Period

365 nights

SO Brand Icon MattressWarranty

Warranty

10-year warranty

SO Brand Icon PropertyShipping

Shipping Method

Free shipping

SO Brand Icon PropertyPrice

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

SO sleeper type couples
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
SO sleeper type back sleepers
Back Sleeping
Ideal for average weight and heavyweight back sleepers.
SO sleeper type stomach sleepers
Stomach Sleeping
Ideal for lightweight stomach sleepers.
Average Customer Rating
/5
Watch Our Video Review

The Emma CliMax is an excellent hybrid mattress, combining high-quality foams for pressure relief and sturdy pocketed springs for support. Made for heavy sleepers and couples, this bed has a firmer feel (specifically, a 7.5/10 on the firmness scale). 

Couples should enjoy good motion transfer, plenty of responsiveness for sex, lots of cooling, and solid edge support.

Heavy sleepers should receive plenty of support from the sturdy coils and high-density foams, whether they sleep on their side, back, or stomach.

Like what you’re hearing about the Emma CliMax? We’ve got a full review if you want to know more, or you can click here to get the best deal.

See our other top picks for the best hybrid mattress if you are still searching!

Is a King Mattress Worth it?

Take a look at some pros and cons to decide!

King Mattress Pros

  • King mattresses offer more sleeping space, which is especially nice for couples.
  • If you’re a restless sleeper, you’ll have room to toss and turn without disturbing a partner or falling off the bed.
  • Taller or heavier sleepers should appreciate the extra space offered.
  • Can be great for those who need enough room to sleep with pets.

King Mattress Cons

  • King size mattresses are more expensive than other mattress sizes. Sheets, bed frames, and other accessories will also be pricier.
  • A king mattress could be too large for a smaller bedroom. For smaller beds, see our top picks for the best queen mattresses.
  • King mattresses are heavier than other sizes, so it may be harder to move around or set up.

What Are Different Types of King Mattresses?

King vs California King Mattresses

A standard king size mattress is 76″ wide x 80″ long, so you’re sacrificing some width for extra height on a California king, which is 72″ wide x 84″ long

A California king is one of the longest mattress sizes available, so if your main priority is length, this is the size you’ll want. You can look for a mattress with great edge support (like the Saatva) to compensate for the loss of width. If you prefer extra width or like a more square mattress look, you’ll probably prefer a standard king size mattress.

King vs Split King Mattresses

If your partner has different sleep preferences, you should consider a split king mattress. A split king is the same size as a traditional king mattress, but it’s made of two twin XL beds. Split kings are great options for couples with different sleep preferences or weights. Each side can be customized to meet your individual sleep needs, so a light side sleeper and a heavy stomach sleeper can share a bed and still get the desired support and pressure relief.

Another reason to consider split kings is they’re compatible with adjustable bases. These beds match with other bed frames too, so they’re still a nice choice even if you prefer a less high-tech frame.

Wyoming King

Wyoming King mattresses measure 84″ x 84″, so they’re eight inches wider and four inches longer than a standard king. Because it’s as long as a California king, there’s extra room for taller sleepers. But this bed is wide enough to accommodate couples, heavier sleepers, or those who toss and turn a lot.

Texas King

Texas king beds are 80″ long by 98″ wide, so they’re significantly wider than any of the king models we’ve introduced thus far. Compared to a standard king, a Texas king is four inches longer and 14 inches wider. So, larger people, couples, or even couples co-sleeping with a child can benefit from this size.

Alaskan King

Alaskan kings measure 108″ x 108″, so it goes without saying that these beds can accommodate basically anyone. It can fit heavy sleepers, tall sleepers, couples, even couples co-sleeping with children. While it may not fit in every bedroom, it should provide more than enough room for every sleeper.

Picking a King Mattress: Buying Considerations

While you can’t go wrong with any of the king mattresses on this list, I’ve included a few tips that could help you choose the best type of mattress for your body type and sleep needs. You can check out our mattress buying guide for more in-depth information.

Mattress Materials

Take a look at my list below to learn about the main mattress types and who they might be best for.

  • Foam mattresses: Foam mattresses can incorporate a variety of foam materials, including memory foam and polyfoam. They include a support layer of dense foam, rather than a layer of coils found in hybrid mattresses. Foam beds can vary in feel, so most sleepers can find a foam mattress that works for them. I’d steer heavier sleepers or those wanting a firmer feel toward hybrid or innerspring beds.
  • Hybrid mattresses: Hybrid mattresses combine foam comfort layers and coil support layers. These mattresses often feel bouncy and responsive. Many different sleepers should find a suitable hybrid mattress, as these beds differ in feel.
  • Latex mattresses: Latex mattresses are made with latex foams. They’re bouncy, naturally cooling, and very durable. Latex is often used in organic mattresses, like the Avocado Green mattress.
  • Innerspring mattresses: This traditional mattress type, often found in brick-and-mortar stores, relies on a steel coil support system. These beds feel bouncy and supportive, and are great for heavy people, combination sleepers, and seniors.

Firmness and Feel

A bed’s feel is one of the most important buying considerations. Beds can range from firm to soft, but depending on your sleeping position and body type you’ll have different firmness needs. Read the list below to learn which is best for you, and see our mattress firmness guide for more in-depth information.

  • Side Sleepers: Side sleepers often prefer a soft mattress with plenty of pressure relief at pain points like the shoulders and hips. Because of this, side sleepers should check out pillow-top and memory foam mattresses.
  • Back Sleepers: These sleepers do best on medium-firm to firm mattresses. They need enough support to keep their hips neutrally aligned with their shoulders, but also benefit from body-contouring around the lower back.
  • Stomach Sleepers: These sleepers need a firm to extra-firm mattress that prevents their hips from sinking into the bed. Bowing at the back can lead to pain over time, so stomach sleepers should find firm support from innerspring and latex mattresses.
  • Combination Sleepers: Combination sleepers do best on medium-firm mattresses offering appropriate support in multiple sleeping positions. These sleepers should consider a responsive mattress to easily change positions throughout the night.
  • Heavy Sleepers (over 250 lb): These folks should find mattresses softer than lightweight or average-weight sleepers. So, they should find firmer mattresses offering lots of support. Our best mattresses for heavy people roundup provides some great options.

Motion Isolation

A bed that isolates motion well is fit to be on our roundup for the best mattresses for couples. With good motion isolation, partners won’t feel each other’s movements while tossing and turning at night. If you’re looking for good motion isolation, keep an eye out for all-foam constructions or mattresses with thicker comfort layers. The soft material can better trap movement.

Edge Support

Beds with great edge support allow the sleeper to make full use of the mattress surface. Edge support is also an indicator of durability. So, those who like sleeping at the edge of the bed or those wanting for a longer-lasting options should keep edge support in mind.

Durability

Mattresses aren’t cheap, and if you can afford it, it’s best to spend more money on a longer-lasting option. Two things that can determine durability are the construction of a mattress and the quality of materials. Latex, hybrid, and innerspring constructions tend to be more durable than all-foam mattresses. However, if you have a high-quality all-foam mattress with a thick base foundation, you should expect it to last a while.

Price

Keep in mind that purchasing a budget option may not give you the mattress quality or lifespan you’re hoping for. Similarly, paying thousands of dollars for a luxurious mattress may not offer anything different than a mattress hundreds of dollars less. We recommend planning out your budget, doing your research, and watching out for deals. In fact, Sleepopolis offers coupons for many of your favorite mattress brands.

Warranty, Shipping, and Sleep Trial

A few other things to consider when buying a new mattress are its warranty, sleep trial period, and shipping costs. Many online mattress brands provide free shipping, and often arrive compressed in a box. Other brands, like Saatva, may offer free white glove delivery, transporting the mattress to your room of choice.

Warranty and trial-period length also weigh into a buying decision. Opt for a mattress with at least a 10-year warranty and a 100-night trial. Some companies include lifetime warranties and year-long sleep trials, so take a look at company policies before deciding on a new bed. To make sure you’ve got the best deal possible, see my picks for the best mattresses for the money.

Best King Mattress: Details and Pricing

Mattress Best For Price (King) Coupon Review
DreamCloud Premier Luxury $2,498 DreamCloud Coupon Read Our Review!
Helix Midnight Luxe Side Sleepers $2,499 Helix Coupon Read Our Review!
Saatva Back Pain $1,995 Saatva Coupon Read Our Review!
Nolah Evolution Soft $1,609 Nolah Coupon Read Our Review!
WinkBeds Couples $1,999 WinkBed Coupon Read Our Review!
Bear Hot Sleepers $1,248 Bear Coupon Read Our Review!
Brooklyn Bedding Signature Hybrid Back Sleepers $1,499 Brooklyn Bedding Coupon Read Our Review!
Birch Natural by Helix Organic $1,849 Helix Coupon Read Our Review!
Titan Plus Heavy Sleepers $1,499 Brooklyn Bedding Coupon Read Our Review!
Emma CliMax Hybrid Hybrid $1,599 Emma Coupon Read Our Review!

FAQ

Are king mattresses square?

No, king mattresses are rectangular at 76" x 80".

Are king mattresses better for couples?

It depends on your preferences! King mattresses are larger, so heavier couples or couples who like to spread out may prefer the additional space.

Do all king mattresses have a ridge in the middle?

A ridge, or hump, commonly develops in the middle of king mattresses because it’s uncommon for solo sleepers or couples to sleep in the center of these large beds. To avoid a “king’s ridge,” you can make it a point to spend time in the center of your mattress while awake, add a topper, or choose a solid foundation or box spring with a center support beam.

Is there a bed size bigger than a king?

Yes, there are a few larger bed sizes. Alaskan king mattresses and Texan king mattresses are 8" to 32" wider than a standard, or Eastern, king mattress. And Emperor size mattresses are 80" x 80", making them the mattresses with the largest surface area on the market today.

Bridget Chapman

Bridget Chapman

Bridget is a Certified Sleep Science Coach and senior editor here at Sleepopolis. From testing mattresses to writing about various sleep health topics, her goal is to help you get a good night's sleep. You can also find her in videos on our YouTube channel. Bridget graduated magna cum laude from San Diego State University with a degree in journalism and a minor in English. Before joining the Sleepopolis team, she was a TV news reporter and worked in cities across the country. She loves spending time outdoors, checking out new restaurants, snuggling with her pets, and of course — getting some quality Zzz’s.