Best King Size Mattress

Our Methodology

Our Certified Sleep Science Coaches have reviewed more than 220 mattresses in our lab, testing each one on its materials, comfort, cooling, support, and other categories. Learn more

Just Updated

We’ve recently re-reviewed all of our top king size mattress picks and added more feedback from the testers in our lab – so you can rest easy that if it’s on this list, we’ve personally tested it, slept on it, and stand by its recommendation.

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Searching for the best king size mattress? At 76 inches wide by 80 inches 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, we’ve listed the best king mattresses below. At the bottom of the page, we’ve included the mattresses in a chart so you can compare prices.

Our Top Pick for King Mattresses

The Saatva offers three different firmnesses to cater to a variety of different sleepers. Its innerspring feel, cooling abilities, durability, and high quality make it an easy pick for our favorite king mattress.

Best King Size Mattresses

• Best Overall – Saatva
• Best King Size Mattress for Couples – WinkBed
• Best King Size Mattress for Back Pain – Helix Midnight Luxe
• Best Memory Foam King Size Mattress – Nectar
• Best Hybrid King Size Mattress – Emma Hybrid Comfort
• Best King Size Mattress for Heavy Sleepers – Titan Plus
• Best Soft King Size Mattress – Nolah Evolution
• Best King Size Mattress for Muscle Recovery – Bear Elite Hybrid
• Best King Size Mattress for Back Sleepers – Brooklyn Bedding Signature Hybrid
• Best Organic King Size Mattress – Birch Natural

Best King Size Mattress: Video Review

Best Overall King Size Mattress – Saatva

Expert Opinion

The Saatva’s bouncy innerspring construction offers firm support, keeping your spine aligned. Built with a coil-on-coil construction, the Saatva offers a traditional innerspring feel but still feels comfortable thanks to a Euro top layer. Its durable steel coils in the support layer prevent sagging and provide lots of back support. We also love how the Saatva offers three firmness levels (Plush Soft, Firm, and Luxury Firm), so it should work for most body types and sleeping positions.

A really important factor for king size beds is edge support. After all, there’s typically more than one person sleeping on a king. Edge support, or the strength of a mattress’s perimeter, tells us whether or not folks will be able to lay on its edges and make full use of the surface. While testing the Saatva, we found some outstanding edge support results. While lying on or just sitting on the mattress, we felt lifted and didn’t feel the mattress collapsing at all under our weight.

What our tester says: “The Saatva Classic is a bouncy, high-quality mattress with durability and great edge support.” — Bridget Chapman, senior product editor

What Customers Say

Reviews love that Saatva offers free white glove delivery. In other words, the company will send someone to set up your new mattress and even remove your old one.

Pros of the Saatva

• The Saatva provides lots of support for back sleepers, but still gives them lots of cushioning around the lumbar region. We especially recommend the Luxury Firm model for these sleepers.
• The coils inside the Saatva Classic mattress make it especially bouncy, making it easy to switch between sleeping positions. This is great news for combination sleepers who need to switch positions at night.
• Folks who weigh 250 pounds or more should find the Saatva provides enough support for a heavier body weight, thanks to its sturdy and durable construction.

Cons of the Saatva

• The high number of coils utilized in the Saatva contribute to higher motion transfer, so if you sleep with a partner and are easily disturbed by their movements at night, the Saatva may not be an ideal choice.

Think you’ve found the relief you need? Read our full Saatva mattress review. You can also click here for the best deal. Not what you’re looking for? Check out more picks for the best mattresses.

Best King Size Mattress for Couples – WinkBed

Expert Opinion

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 option, the WinkBed is available in Softer, Luxury Firm, Firmer, and Plus versions.

One of the most important factors in a mattress for couples is motion transfer, which we test in our lab by dropping a 10-pound steel ball from three different heights. From there, we measure the level of disturbance caused by the drops. Low levels of disturbance indicate low motion transfer, while high levels of disturbance indicate high motion transfer. In a mattress for couples, we recommend looking for a bed with low motion transfer. That way, the bed will trap movement and prevent you or your partner from feeling each other tossing and turning at night. While testing the WinkBed’s Luxury Firm model, we found great results and overall low motion transfer.

What our tester says: “I found the WinkBed to be a comfortable and highly supportive mattress. Lying on the bed, I felt the uplift from the sturdy base, but still felt the plush cushioning of the pillow top layer above.” — Amelia Jerden, senior staff writer

What Customers Say

Many customers report that their back pain was alleviated after taking a chance on the WinkBed.

Pros of the WinkBed

• The WinkBed’s bouncy nature makes it a great choice for combination sleepers, as they can easily switch between sleeping positions.
• The sturdy support the WinkBed provides, along with cushioning from the Euro pillow top, make it an ideal choice for relieving lower back pain.
• Tall pocketed coils allow for lots of airflow in the WinkBed, plus gel infusions and a Tencel cover promote cooling, making it a good choice for hot sleepers.

Cons of the WinkBed

• The WinkBed is a high-quality, well-constructed mattress, and the price reflects that. It may not be the best option for budget shoppers.

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 – Helix Midnight Luxe

Expert Opinion

Helix is known for its line of customizable mattresses, and we’re especially drawn to the hybrid Midnight Luxe. This king size bed starts with a breathable Tencel cover and includes two more inches of comfort foam than the standard Helix Midnight, as well as a plush pillow top layer. We felt lots of pressure relief when lying down on the Midnight Luxe, but decided it overall has a medium-firm feel. For those with back pain, Midnight Luxe has zoned support. It should be extra-soft around the shoulders to prevent stiffness while providing more support for the hips, helping to alleviate and prevent back pain.

Our pressure map test also helped us determine whether or not the Helix Midnight Luxe would be good for back pain. We use a pressure map to indicate areas of high and low pressure when we’re lying down on a mattress. High pressure is indicated by red and orange, moderate pressure is indicated by yellow, low pressure is indicated by green, and little to no pressure is indicated by blue. We found low pressure (mostly blue) at the back while testing, so the Midnight Luxe should be a great mattress for alleviating back pain.

What our tester says: “I think the luxe version is a great option for anyone looking to have all the benefits of the original mattress model — but with added plushness and support.” — Bridget Chapman, senior product editor

What Customers Say

The Helix Midnight Luxe doesn’t just alleviate back pain. Many customers report that the mattress helps joint pain in other areas, as well.

Pros of the Helix Midnight Luxe

• Many shoppers looking for a king size bed sleep with a partner. These folks should sleep comfortably on the Midnight Luxe, as it has good edge support, low motion transfer, and cooling capabilities.
• The balanced feel of the Midnight Luxe works well for back sleepers, as it helps them maintain a healthy spinal alignment while still feeling comfortable.
• Most side sleepers should experience cozy pressure relief resting atop the Midnight Luxe’s pillow top.

Cons of the Helix Midnight Luxe

• Many stomach sleepers will likely find the Midnight Luxe too soft. They’ll likely benefit from a firmer mattress to keep their hips from sinking into the bed.

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

Best Memory Foam King Size Mattress – Nectar

Expert Opinion

Those wanting a slow-sinking, hug-like feel should really appreciate the Nectar. Its memory foam helps with contouring and lessens the pressure on sensitive joints, so it’s great for shoulder pain and hip pain. Unlike other all-foam mattresses, the Nectar provides sufficient support so you don’t sink too far in of the material and throw your spine out of alignment. Also, we were impressed with the edge support the Nectar has, which is an indication you’ll be able to make full use of your king bed’s surface.

Memory foam is known for its pressure relief. Our pressure map test showed minimal pressure buildup while on our backs. It should be a good mattress for back pain, shoulder pain, and hip pain while back sleeping. Side sleeping, we found moderate pressure, or lots of green, at the shoulders. We found a little yellow at the hip. This means that folks with severe hip pain might want a more pressure-relieving, but those with shoulder pain should be alright.

What our tester says: “After spending some time on the bed, I felt more cradled by it than lifted up by it. This deep sinkage and body-contouring could be nice for side sleepers or folks who like a pressure-relieving feel.” — Bridget Chapman, senior product editor

What Customers Say

Reviewers appreciate the generous year-long trial to test out the Nectar mattress.

Pros of the Nectar

• For back sleepers who love a softer feel, the Nectar provides cozy cushioning without causing the sleeper to feel enveloped.
• The soft foams of the Nectar should provide side sleepers with plenty of pressure relief around the shoulder and hip.
• Available for an affordable price, the Nectar is a good option for budget shoppers.

Cons of the Nectar

• Most stomach sleepers won’t get enough support from the Nectar to keep their hips lifted up and maintain their spinal alignment.

Think the Nectar is the bed for you? Read our full Nectar mattress review. You can also click here for the best deal. Not sold just yet? See our other picks for best memory foam mattresses.

Best Hybrid King Size Mattress – Emma Hybrid Comfort

Expert Opinion

The Emma Hybrid Comfort is an excellent hybrid mattress, combining high-quality foams for pressure relief and sturdy pocketed springs for support. This bed has a firmer feel (specifically, a 7.5 out of 10 on the firmness scale) that we think could work for heavy sleepers, as well as couples. In testing, we took note of the cloud-like softness in the upper layers of the bed but still felt comfortably propped up on the bed. We also noticed that this mattress is incredibly bouncy, thanks to the responsive foam and springy coils.

What our tester says: “The Emma Hybrid Comfort is a great firm mattress option, especially for stomach and back sleepers who want reliable support for their back and hip regions.” — Amelia Jerden, senior staff writer

What Customers Say

Heavier sleepers report feeling really comfortable and supported on this mattress. Others compliment the Emma Hybrid Comfort’s cooling abilities and bouncy feel.

Pros of the Emma Hybrid Comfort

• The Emma Hybrid Comfort has strong edge support, which allows couples to use the entire surface of the bed, as well as good cooling capabilities and a responsive feel that’s ideal for sex.
• Folks who weigh 250 pounds or more should feel adequately supported on the Emma Hybrid Comfort.
• The responsive feel of this bed makes it easy for combo sleepers to switch between sleeping positions.

Cons of the Emma Hybrid Comfort

• If you love a slow response to pressure from your bed, the Emma Hybrid Comfort isn’t your best match. It’s one of the bounciest beds we’ve ever tested and has a quick response to pressure.

Like what you’re hearing about the Emma Hybrid Comfort? Read our full Emma Hybrid Comfort mattress review. You can also click here to get the best deal. See our other top picks for the best hybrid mattress if you are still searching.

Best King Size Mattress for Heavy Sleepers – Titan Plus

Expert Opinion

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 is 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.

During testing, we brought in our friend, Paulie (a pro powerlifter). He’s a heavyweight sleeper who helped us get a real feel for the Titan Plus’s abilities. He found a lot of pressure relief while side sleeping and a lot of support while back sleeping.

What our tester says: “The Titan had a very firm and supportive feel. As I was lying on it, I felt my back was extremely supported and I felt ‘on top’ of the mattress.” — Amelia Jerden, senior staff writer

What Customers Say

Customers seem to be a little disappointed with the Titan Plus’s edge support, but overall it appears folks enjoy the firm and supportive feel of this mattress.

Pros of the Titan Plus

• We didn’t detect a lot of motion transfer when testing the Titan Plus, making it a solid choice for couples.
• Stomach sleepers should appreciate the firm feel and supportive nature of this bed.
• The Titan Plus provides an ideal level of support for many back sleepers (particularly those weighing 250 pounds or more).

Cons of the Titan Plus

• The Titan Plus’s firmer feel isn’t ideal for side sleepers, who need more pressure relief.

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 Soft King Size Mattress – Nolah Evolution

Expert Opinion

Available in three different firmness levels (Plush, Luxury Firm, and Firm) the Nolah Evolution provides lots of contouring and pressure relief, no matter which model you choose. The plushness comes from the brand’s proprietary AirFoamICE, letting you comfortably sink into the mattress. The soft comfort foams in the upper layers provide the coziness, while the coil base layer provides support for an overall balanced feel. We felt lots of cushioning and sinkage lying on the Nolah Evolution. Naturally, we’d recommend the Plush version for shoppers seeking a soft mattress, but even the Luxury Firm model we tested provided lots of cushioning.

While testing, we put the Nolah Evolution’s Luxury Firm version through our pressure map test. We saw low pressure (blue) while back sleeping, and we saw green at the shoulder and a tad yellow at the hip while side sleeping. Overall, this is a great mattress for joint pain, but the softer version of this bed provides even more pressure relief for those with lots of sensitivity at these areas.

What our tester says: “One of my favorite features is the soft pillow-top. It’s a great touch for anyone [living with] shoulder or hip pain, as it allows you to sink into bed for a plusher feel.” — Bridget Chapman, senior product editor

What Customers Say

Many seniors left reviews for the Nolah Evolution and reported really positive results for their joint pain.

Pros of the Nolah Evolution

• 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-inch layer of support coils.

Cons of the Nolah Evolution

• The Nolah Evolution is a higher-end mattress; it may not be a great pick for budget shoppers.

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 Muscle Recovery – Bear Elite Hybrid

Expert Opinion

Bear mattresses are unlike other mattresses on the market, and their superpower is Celliant. The Bear Elite Hybrid uses this material in its cover. It’s a soft and breathable material, and during testing we found it helps a lot with cooling down hot sleepers. But another bonus of Celliant is that it reportedly promotes muscle recovery and blood flow, making the Bear a popular choice among athletes and anyone looking to recover after an active day.

What our tester says: “The Bear Elite’s top layer is a hand quilted cover that combines Phase Change Material fabric and Celliant fiber. Phase Change Material is known for its ability to absorb body heat. Together, the company says these materials keep sleepers cool and also help with muscle recovery.”  — Bridget Chapman, senior product editor

What Customers Say

Many combination sleepers said they felt really comfortable on this mattress. For several of the reviewers, the Bear Elite Hybrid provided a plush feel that didn’t cause them to feel stuck in the material.

Pros of the Bear Elite Hybrid

• The Bear Elite Hybrid is offered in three different firmnesses (Soft, Medium, and Firm), so back, side, and stomach sleepers of most body types should find a suitable option.
• With good motion isolation results, a fairly responsive surface (good for sex), and cooling capabilities, the Bear is a good pick for couples to share.
• Those with back pain should find the mix of pressure relief and support from the Bear Elite Hybrid beneficial.

Cons of the Bear Elite Hybrid

• The Bear Elite Hybrid is a luxury mattress with a number of special features, so it’s a pricier option.

Is the Bear the right mattress to keep you cool at night? Read our full Bear Elite Hybrid mattress review. You can also click here to get the best deal. Still looking? View our top picks for the best mattress for athletes.

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

Expert Opinion

This medium-firm mattress combines pressure relief and support for back sleepers. It should help 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 sleepers may feel pressure relief as soon as they lie down. This bed is available in Soft, Medium, and Firm models.

We reviewed the Medium and found it to be a great pick for back sleepers. On our pressure map test, we saw almost entirely blue. These were some absolutely fantastic results. Many back sleepers with back pain, shoulder pain, and hip pain should find relief on the Brooklyn Bedding Signature Hybrid.

What our tester says: “This mattress has a bouncy, innerspring feel. No matter which positions you cycle through, you should feel supported by the Signature Hybrid. And it should be easy to roll over and switch positions throughout the night.” — Bridget Chapman, senior product editor

What Customers Say

Reviewers note that the Brooklyn Bedding Signature Hybrid was a high-quality mattress for such a great value.

Pros of the Brooklyn Bedding Signature Hybrid

• Shoppers with a bedmate should appreciate the good motion isolation and firm edge support the Signature Hybrid offers.
• For those who rotate between sleeping positions, the Signature Hybrid is responsive and easy to move around on.
• The Signature Hybrid is an affordable bed, and with discounts you can frequently score a queen size mattress for less than $1,000.

Who Should Avoid the Brooklyn Bedding Signature

• The Signature Hybrid is a no-frills mattress without many special features. If you are looking for something more jazzed up, this won’t be the best choice for you.

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

Expert Opinion

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 plush. The comfort layer of organic wool assists with cooling due to its moisture-wicking properties, as well as acting as a natural fire barrier. Beneath lies a responsive transition layer of Talalay latex, which is all-natural and cooling while offering a buoyant and responsive feel.

What our tester says: “One of my favorite things about the Birch is how cooling it is! I think any hot sleeper will be satisfied by this breathable bed. It’s definitely one of the most cooling mattresses available thanks to its wool and latex layers.” — Madison Schaper, former Sleepopolis staff writer and mattress tester

What Customers Say

There are thousands of reviews on Birch’s website, and many make a point to highlight the Birch’s durability and high-quality materials.

Pros of the Birch Natural

• The naturally breathable and cooling materials in the Birch make it a great choice for hot sleepers to stay cool throughout the night.
• The firmer feel of the Birch, with some cushioning from the wool layer, makes a good pick for back sleepers.
• The Birch’s firm and elevating feel also works well for stomach sleepers.

Cons of the Birch Natural

• The coils and latex in this bed make it quite bouncy, which can lead to a lot of motion transfer. If you are easily disturbed by a restless bedmate, the Birch may not be ideal for you.

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.

Picking a King Mattress: Buying Considerations

While you can’t go wrong with any of the king mattresses on this list, we’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 the 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 poly foam. 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. In general, we’d steer heavier sleepers or those wanting a firmer feel toward hybrid or innerspring beds over foam.
• 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 pounds): 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.

How Body Weight Factors Into Choosing A Mattress

How much you weigh can affect how a mattress will feel to you, as well as how much support you need. At Sleepopolis, we categorize sleepers as lightweight (130 pounds or less), average-weight (130 to 250 pounds), and heavyweight (250 pounds or more). We use these categories to help you pick a mattress that will fit your needs.

Lightweight sleepers won’t sink into their mattress as much, so they tend to experience a bed as firmer than other sleepers would. They also often don’t need as much support. Average-weight sleepers are the demographic most mattress manufacturers design their beds for. Heavyweight sleepers need sturdier and more supportive beds to ensure proper support, as well as to prevent the mattress from wear and tear. Many companies now make beds specifically designed to support a heavier body weight.

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 a longer-lasting option 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.

How Long Should A Mattress Last?

If you’ve spent a considerable amount of money on a mattress, you’ll naturally want it to last as long as possible. For a general rule of thumb, a good quality mattress can last around eight to 10 years. If you see visible deterioration before that 10 year mark, such as sagging or tearing, it may be time for a replacement.

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.

How We Picked the Best King Size Mattresses

• Materials: Regardless of the type of mattress (latex, memory foam, etc.), we ensured that these mattresses have high-quality materials that stand the test of time. This is reflected in the company warranty as well; longer warranties typically indicate a company’s confidence in its product.
• Firmness and Feel: Each of the mattresses featured in this article is paired with a specific superlative that showcases a special trait or feature of each mattress. So, every mattress on this list has a different construction and feel with something special to offer. Regardless of your sleeping position or body type, there should be a king size mattress for you in this roundup.
• Motion Isolation: We found it important to make sure these mattresses scored well in motion isolation, meaning they’re able to trap movement well across the mattress. This helps prevent folks from waking up at night while their partner or pet is tossing and turning. And since king size mattresses are typically bought for two, we knew this was a crucial aspect to consider.
• Edge Support: With a higher likelihood of couples sleeping on a king mattress, we knew we wanted to consider edge support, or how sturdy the perimeter of the mattress is. This is important for a bed with multiple sleepers because sturdy edges ensure you can make full use of the mattress surface.
• Price: While putting together this list, we tried to account for the variety of price ranges shoppers have. There are a number of budget options on this roundup, as well as mattresses with lots of special features for luxury shoppers. In any case, we wanted these mattresses to be worth the money you’re spending on them, so above all else we considered the overall value.

Is a King Mattress Worth it?

Take a look at some pros and cons to decide.

Who We Recommend a King Mattress For

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

Who We Don’t Recommend a King Mattress For

• Budget shoppers: King size mattresses are more expensive than other mattress sizes. Sheets, bed frames, and other accessories will also be pricier.
• Those with a small bedroom: A king mattress could be too large for a smaller bedroom. For smaller beds, see our top picks for the best queen mattresses.
• Those wanting a lighter mattress: 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?

Believe it or not, options span far past a standard king mattress. Perhaps one of these other king options is a better fit for you!

MATTRESS TYPE	DIMENSIONS
Standard King	76″ W x 80″ L
California King	72″ W x 84″ L
Split King	38″ W x 80″ L (x2)
Wyoming King	84″ W x 84″ L
Texas King	80″ W x 98″ L
Alaskan King	108″ W x 108″ L

King vs California King Mattresses

A standard king size mattress is 76 inches wide by 80 inches long, so you’re sacrificing some width for extra height on a California king, which is 72 inches wide by 84 inches 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 inches by 84 inches, 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 inches long by 98 inches 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 inches by 108 inches, 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.

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 our picks for the best mattresses for the money.

Other Mattress Sizes to Consider

• Best Queen Size Mattress
• Best Twin Mattress
• Best Full Mattress
• Best Twin XL Mattress

FAQs

How big is a king size mattress?

King mattresses are rectangular and measure 76 inches by 80 inches. This means they’re larger than a queen and shorter yet wider than a California king.

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.

What is the best king mattress?

This truly does depend on the person, but if we had to choose one, we’d say the Helix Midnight Luxe. It suits sleepers of many sleeping positions and body types, and it has many features that make it a good mattress for couples (motion isolation, cooling, edge support).

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 eight inches to 32 inches wider than a standard, or Eastern, king mattress. And Emperor size mattresses are 80 inches by 80 inches, making them the mattresses with the largest surface area on the market today.

How much is a king mattress?

The average king size bed costs roughly $1,500-$1,700. Of course, there are budget and luxury options out there. But paying too far little might result in a mattress with poor quality, and paying too much may not get you your money’s worth. We believe all options in this roundup to be great king size mattresses for the money.

How much does a king mattress weigh?

A king size mattress weighs roughly 150 pounds. Luckily, there are some companies that will help not only deliver but also set up your mattress. Saatva is a great example of this; the company offers free white glove delivery.

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.

How We Chose These Mattresses

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.

Best King Mattresses 2023

Mattress	Best For	Price (King)	Coupon	Review
Saatva	Best Overall	$2,445	Saatva Coupon	Read Our Review
WinkBeds	Couples	$1,999	WinkBed Coupon	Read Our Review
Helix Midnight Luxe	Back Pain	$2,873	Helix Coupon	Read Our Review
Nectar	Memory Foam	$1,349	Nectar Coupon	Read Our Review
Emma Hybrid Comfort	Hybrid	$1,199	Emma Coupon	Read Our Review
Titan Plus	Heavy Sleepers	$1,499	Brooklyn Bedding Coupon	Read Our Review
Nolah Evolution	Soft	$2,699	Nolah Coupon	Read Our Review
Bear Elite Hybrid	Hybrid	$2,111	Bear Coupon	Read Our Review
Brooklyn Bedding Signature Hybrid	Back Sleepers	$1,599	Brooklyn Bedding Coupon	Read Our Review
Birch Natural by Helix	Organic	$2,186	Helix Coupon	Read Our Review

Sources

• Gordan, Ian L. Effect of shirts with 42% Celliant™ fiber on tcPO2 levels and grip strength in healthy Subjects: A placebo-controlled clinical trial. Journal of Textile Science and Engineering. 2021. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8351537/

Bridget Chapman

Senior Product Editor

About Author

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.

Combination Sleeper