On the hunt for the best split king mattress? Essentially two twin XL mattresses pushed together, a split king is great for couples who want their own customized feel and firmness level on their side of the bed. Opting for a split king also helps minimize motion transfer (along with other benefits we’ll cover), so you won’t be disturbed by each other’s movements. And because here at Sleepopolis we want you and your partner to sleep in harmony, we put together this roundup of the best split king mattresses. We made sure to include a variety of beds that will work for different sleepers and couples. You can either purchase these mattresses as two twin XLs or most of them as a split king.
Best Split King Mattresses 2023
- Editor’s Pick – Nectar
- Best for Combination Sleepers – Saatva Memory Foam Hybrid
- Best Hybrid – Helix Dusk
- Best Luxury – DreamCloud
- Best Customizable – Nolah Evolution
- Best Value – Bear Star
- Best for Heavy Sleepers – Brooklyn Bedding Titan Plus
- Best Memory Foam – Tempur-Pedic TEMPUR-Cloud
Compare Split King Mattresses
Nectar Mattress
Saatva Memory Foam Hybrid
Helix Dusk Mattress
DreamCloud Original Mattress
Nolah Evolution Hybrid Mattress
Bear Star Hybrid Mattress
Titan Plus
TEMPUR-Cloud Mattress
Rating
Firmness
Soft: 6/10
Medium-firm: 6.5/10
Soft: 6/10
Medium-firm: 7/10
Multiple firmness options
Soft: 6/10
Firm: 7.5/10
Medium-firm: 6.5/10
Material
Foam
Hybrid
Hybrid
Hybrid
Hybrid
Hybrid
Hybrid
Foam
Cooling
--
--
--
✓
--
✓
--
--
Sleep Position
Back & Side
Back & Stomach
Back
Back
Back & Side
Back & Side
Back & Stomach
Back & Side
Editor’s Pick – Nectar
The original Nectar mattress is a pressure-relieving, yet supportive, bed. It’s made with a thick layer of gel memory foam, which allows the sleeper to really sink into its surface.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. The original Nectar mattress is a pressure-relieving, yet supportive, bed. It’s made with a thick layer of gel memory foam, which allows the sleeper to really sink into its surface.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. The original Nectar mattress is a pressure-relieving, yet supportive, bed. It’s made with a thick layer of gel memory foam, which allows the sleeper to really sink into its surface.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.Nectar Mattress
Material
Foam
Trial Period
365 nights
Shipping Method
Free shipping
Firmness
Soft: 6/10
Warranty
Lifetime warranty
Price Range
$$$$$
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.
Financing Options
Nectar Mattress
Material
Foam
Warranty
Lifetime warranty
Firmness
Soft: 6/10
Shipping Method
Free shipping
Trial Period
365 nights
Price Range
$$$$$
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.
Financing Options
Nectar Mattress
Material
Foam
Firmness
Soft: 6/10
Trial Period
365 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Hip Pain
This bed is perfect for anyone suffering from hip pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for lightweight and average weight side sleepers.
Financing Options
The Nectar is our Editor’s Pick because it’s not only affordable, but it’s also a high-quality and comfortable mattress. It’s made of all-foam layers, which allow for pressure relief around sensitive joints. We think it’s especially a great option for side and back sleepers.
Another reason the Nectar is a nice choice is it’s quite cooling for an all-foam bed. It has a cooling cover made from a quilted polyester and nylon blend and gel-infused memory foam to help prevent sleepers from overheating. If you want even more cooling materials, you can upgrade to the Nectar Premier or Nectar Premier Copper. The Nectar comes in both twin XL and split king sizes, along with other sizes.
The Nectar comes with a 365-night trial and a lifetime warranty (or as Nectar likes to call it, a forever warranty).
Want to learn more? Read our full Nectar review and check out our comparison of the all-foam Nectars. Get our best deal here.
Best for Combination Sleepers – Saatva Memory Foam Hybrid
The Saatva Memory Foam Hybrid mattress uses a combination of coils and gel memory foam to provide soft contouring without that "stuck in the bed" feel.
The Saatva Memory Foam Hybrid mattress uses a combination of coils and gel memory foam to provide soft contouring without that "stuck in the bed" feel.
The Saatva Memory Foam Hybrid mattress uses a combination of coils and gel memory foam to provide soft contouring without that "stuck in the bed" feel.
Saatva Memory Foam Hybrid
Material
Hybrid
Trial Period
365 Nights
Shipping Method
Free white glove delivery
Firmness
Medium-firm: 6.5/10
Warranty
Lifetime warranty
Price Range
$$$$$
Saatva Memory Foam Hybrid
Material
Hybrid
Warranty
Lifetime warranty
Firmness
Medium-firm: 6.5/10
Shipping Method
Free white glove delivery
Trial Period
365 Nights
Price Range
$$$$$
Saatva Memory Foam Hybrid
Material
Hybrid
Firmness
Medium-firm: 6.5/10
Trial Period
365 Nights
Warranty
Lifetime warranty
Shipping Method
Free white glove delivery
Price Range
$$$$$
Saatva is known for making luxurious mattresses that won’t break the bank, and the Saatva Memory Foam Hybrid is no exception. It’s coined as the brand’s hybrid mattress that brings cooler sleep and excellent pressure relief. We like it for combination sleepers since it’s easy to move around on and change sleeping positions, but it still offers some nice plushness and support. Its medium-firm feel works for a variety of sleepers and is specifically great for a lot of back and side sleepers.
It’s also worth noting the Saatva Memory Foam Hybrid features some high-quality materials, like hypoallergenic and organic cotton, gel-infused memory foam, breathable AirCradle memory foam, and pocketed comfort coils. This bed has zoned support, so it helps promote spinal alignment. It’s available in both twin XL and split king sizes, along with other traditional sizes.
The Saatva Memory Foam Hybrid comes with free white glove delivery, a 365-night trial, and a lifetime warranty.
Want to learn more? Read our full Saatva Memory Foam Hybrid review and get our best deal here.
Best Hybrid – Helix Dusk
The Helix Dusk mattress has a medium firm feel that's great for back sleepers! This mattress offers great contouring that doesn't make you feel like you’re “stuck in” bed making it a great choice for back sleepers as well as combination sleepers.
The Helix Dusk mattress has a medium firm feel that's great for back sleepers! This mattress offers great contouring that doesn't make you feel like you’re “stuck in” bed making it a great choice for back sleepers as well as combination sleepers.
The Helix Dusk mattress has a medium firm feel that's great for back sleepers! This mattress offers great contouring that doesn't make you feel like you’re “stuck in” bed making it a great choice for back sleepers as well as combination sleepers.
Helix Dusk Mattress
Material
Hybrid
Trial Period
100 nights
Shipping Method
Free shipping
Firmness
Soft: 6/10
Warranty
10-year warranty
Price Range
$$$$$
Helix Dusk Mattress
Material
Hybrid
Warranty
10-year warranty
Firmness
Soft: 6/10
Shipping Method
Free shipping
Trial Period
100 nights
Price Range
$$$$$
Helix Dusk Mattress
Material
Hybrid
Firmness
Soft: 6/10
Trial Period
100 nights
Warranty
10-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
Another mattress with a medium-firm feel, the Helix Dusk is our favorite hybrid on this roundup since it’s supportive, pressure relieving, and affordable. We think back sleepers should especially enjoy the balance of support and body contouring they’ll get on this bed. It also features strong edge support, so you can sit or sleep near the edge of the bed without feeling like you’re going to fall off.
The Helix Dusk has a soft, breathable cover, responsive foam, high-density foam, and pocketed coils. These materials all work together to bring the sleeper a bouncy, supportive surface. If you want to upgrade to a model with more support, cooling features, and a pillow top, you can select the Helix Dusk Luxe. The Helix Dusk comes in a twin XL size and other traditional mattress sizes. The brand offers several other models with different firmnesses and feels at the same price, as well.
The Helix Dusk comes with a 100-night sleep trial and a 10-year warranty.
Interested in this Helix? Check out our Helix Dusk review and see how it compares to its mattress siblings in our full Helix review. You can also click here to find the best deal.
Best Luxury – DreamCloud
The DreamCloud Mattress is a luxury hybrid mattress made with layers of memory foam and pocketed coils. It offers a great combination of support and pressure relief that back sleepers will really enjoy.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. The DreamCloud Mattress is a luxury hybrid mattress made with layers of memory foam and pocketed coils. It offers a great combination of support and pressure relief that back sleepers will really enjoy.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. The DreamCloud Mattress is a luxury hybrid mattress made with layers of memory foam and pocketed coils. It offers a great combination of support and pressure relief that back sleepers will really enjoy.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.DreamCloud Original Mattress
Material
Hybrid
Trial Period
365 nights
Shipping Method
Free shipping
Firmness
Medium-firm: 7/10
Warranty
Lifetime warranty
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Back Sleeping
Ideal for average weight back sleepers.
Financing Options
DreamCloud Original Mattress
Material
Hybrid
Warranty
Lifetime warranty
Firmness
Medium-firm: 7/10
Shipping Method
Free shipping
Trial Period
365 nights
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Back Sleeping
Ideal for average weight back sleepers.
Financing Options
DreamCloud Original Mattress
Material
Hybrid
Firmness
Medium-firm: 7/10
Trial Period
365 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Seniors
This bed is perfect for senior sleepers.
Back Sleeping
Ideal for average weight back sleepers.
Financing Options
The DreamCloud is, well, dreamy! Fitted with high-quality materials, a sturdy build, and a plush feel, it had to be our pick for the best luxury split king mattress. We think it’s a great fit for back sleepers, couples, and hot sleepers. It has supportive foam and gentle pressure relief to promote healthy sleep posture.
The cover of the DreamCloud is made with a special cashmere blend that’s soft and cozy to the touch. Beneath that cover, you’ll find gel memory foam, poly foam, and individually wrapped coils. These materials are durable and also help the DreamCloud sleep cool throughout the night. The DreamCloud is available in a twin XL size along with other traditional mattress sizes.
The DreamCloud comes with a 365-night trial and a lifetime warranty.
Want to learn more? Read our full DreamCloud review and be sure to check here for savings.
Best Customizable – Nolah Evolution
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.
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.
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.
Nolah Evolution Hybrid Mattress
Material
Hybrid
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Multiple firmness options
Warranty
Lifetime warranty
Price Range
$$$$$
Nolah Evolution Hybrid Mattress
Material
Hybrid
Warranty
Lifetime warranty
Firmness
Multiple firmness options
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
Nolah Evolution Hybrid Mattress
Material
Hybrid
Firmness
Multiple firmness options
Trial Period
120 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
The Nolah Evolution is the most popular mattress in Nolah’s line. It’s our pick for the best customizable because it comes in three different firmness levels: Plush, Luxury Firm, and Firm. This means you can choose the best model for you and your sleeping position. We generally recommend side sleepers choose the Plush, back sleepers choose the Luxury Firm, and stomach sleepers pick the Firm.
Along with the different firmnesses, the Nolah Evolution has a breathable organic cotton cover, cooling fibers, graphite-infused foam, pressure-relieving foam, and wrapped coils. These materials help prevent sleepers from overheating, while also keeping them extremely supported. The Nolah Evolution comes in twin XL and split king sizes, along with other traditional sizes.
Want to learn more? Read our full Nolah Evolution review and check for the best deal.
Best Value – Bear Star
We found a lot to love in the Bear Star Hybrid. While the lift of its pocketed coil system will leave you feeling more “on top” of the mattress than “in” it, its top layers of memory foam are going to provide you with plenty of pressure-relieving sinkage.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. We found a lot to love in the Bear Star Hybrid. While the lift of its pocketed coil system will leave you feeling more “on top” of the mattress than “in” it, its top layers of memory foam are going to provide you with plenty of pressure-relieving sinkage.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. We found a lot to love in the Bear Star Hybrid. While the lift of its pocketed coil system will leave you feeling more “on top” of the mattress than “in” it, its top layers of memory foam are going to provide you with plenty of pressure-relieving sinkage.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.Bear Star Hybrid Mattress
Material
Hybrid
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Soft: 6/10
Warranty
Lifetime warranty
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Back Sleeping
Ideal for lightweight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.
Financing Options
Bear Star Hybrid Mattress
Material
Hybrid
Warranty
Lifetime warranty
Firmness
Soft: 6/10
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Back Sleeping
Ideal for lightweight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.
Financing Options
Bear Star Hybrid Mattress
Material
Hybrid
Firmness
Soft: 6/10
Trial Period
120 nights
Warranty
Lifetime warranty
Shipping Method
Free shipping
Price Range
$$$$$
Hot Sleepers
If you often overheat while you sleep, this mattress should help you stay cool.
Joint Pain
This bed is perfect for anyone suffering from joint pain.
Back Sleeping
Ideal for lightweight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.
Financing Options
Formerly known as the Bear Hybrid, the Bear Star is a hybrid mattress boasting some stellar materials at a competitive price. It has a plush, medium-soft feel that works well for back sleepers and a lot of side sleepers. They should be able to move around with ease on this mattress, so combination sleepers could find a lot to love with the Bear Star. We also like it for couples.
As mentioned, we think it’s a great value because it has high-quality features, like copper-gel memory foam, individually-encased coils, and Celliant. Along with being cooling, some studies show Celliant can help promote blood flow and help with muscle recovery. This bed comes in twin xl and split king sizes, along with other traditional mattresses sizes.
The Bear Star comes with a 120-night trial and a lifetime warranty.
Want to learn more? Read our full Bear Star Hybrid review and click here for the best deal.
Best 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.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. 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.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. 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.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.Titan Plus
Material
Hybrid
Trial Period
120 nights
Shipping Method
Free shipping
Firmness
Firm: 7.5/10
Warranty
10-year warranty
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for heavyweight back sleepers.
Stomach Sleeping
Ideal for heavyweight stomach sleepers.
Financing Options
Titan Plus
Material
Hybrid
Warranty
10-year warranty
Firmness
Firm: 7.5/10
Shipping Method
Free shipping
Trial Period
120 nights
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for heavyweight back sleepers.
Stomach Sleeping
Ideal for heavyweight stomach sleepers.
Financing Options
Titan Plus
Material
Hybrid
Firmness
Firm: 7.5/10
Trial Period
120 nights
Warranty
10-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for heavyweight back sleepers.
Stomach Sleeping
Ideal for heavyweight stomach sleepers.
Financing Options
Heavier sleepers, weighing more than 250 pounds, need a bed that will support them and keep them comfy. The Titan Plus by Brooklyn Bedding was designed with these sleepers in mind and will offer them deep compression support and durability. Its firm feel is a great fit for stomach sleepers, back sleepers, combination sleepers, and couples.
The Titan Plus has a soft and cozy polyester cover (or you can opt for an additional cooling panel), gel memory foam, responsive foam, encased coils, and high-density foam. These are some heavy-duty materials that also offer strong edge support and motion isolation. The Titan Plus comes in twin XL and split California king sizes, along with other traditional mattress sizes.
The Titan Plus comes with a 120-night trial and a 10-year warranty.
Want to learn more? Read our full Brooklyn Bedding Titan Plus review and click here for the best deal.
Best Memory Foam – TEMPUR-Cloud
An excellent choice for those in need of pressure relief, the TEMPUR-Cloud is a memory foam mattress with slow-moving, quicksand-like foam. It is a great option for back sleepers, side sleepers, couples, and even those with lower back pain.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. An excellent choice for those in need of pressure relief, the TEMPUR-Cloud is a memory foam mattress with slow-moving, quicksand-like foam. It is a great option for back sleepers, side sleepers, couples, and even those with lower back pain.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress. An excellent choice for those in need of pressure relief, the TEMPUR-Cloud is a memory foam mattress with slow-moving, quicksand-like foam. It is a great option for back sleepers, side sleepers, couples, and even those with lower back pain.
We recommend this mattress for the following sleeper types: Financing options are available for this mattress.TEMPUR-Cloud Mattress
Material
Foam
Trial Period
90 nights
Shipping Method
Free shipping
Firmness
Medium-firm: 6.5/10
Warranty
10-year warranty
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.
Financing Options
TEMPUR-Cloud Mattress
Material
Foam
Warranty
10-year warranty
Firmness
Medium-firm: 6.5/10
Shipping Method
Free shipping
Trial Period
90 nights
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.
Financing Options
TEMPUR-Cloud Mattress
Material
Foam
Firmness
Medium-firm: 6.5/10
Trial Period
90 nights
Warranty
10-year warranty
Shipping Method
Free shipping
Price Range
$$$$$
Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Pain
This bed is perfect for anyone suffering from back pain.
Back Sleeping
Ideal for lightweight and average weight back sleepers.
Side Sleeping
Ideal for average weight side sleepers.
Financing Options
Are you looking for a mattress that will allow you to slowly sink into its doughy foam layers? Well, look no further than the TEMPUR-Cloud from Tempur-Pedic. We think this bed embodies that classic memory foam feel and will offer side and back sleepers deep pressure relief. This cloud-like material is also great for anyone with lower back pain. It has a medium-firm to slightly firm feel that works for a lot of sleepers.
The TEMPUR-Cloud has a moisture-wicking cover, quicksand-like TEMPUR material, and high-density poly foam. These layers all bring sinkage, stability, and shape to the bed. You can also choose to add coils to the mattress with the TEMPUR-Cloud Hybrid, which is slightly softer and more responsive. The TEMPUR-Cloud comes in a twin long (which is the same as a twin XL) and split king size, along with other traditional mattress sizes.
The Tempur-Pedic TEMPUR-Cloud comes with a 90-night trial and a 10-year warranty.
Want to learn more? Read our full Tempur-Pedic TEMPUR-Cloud review and click for our best deal.
What to Consider When Buying the Best Mattress For You
Depending on your room size, sleeping position, body type, sleep style, and whether or not you share the bed with a partner, a mattress will work differently for you than it may for other people. Because of this, I want to go over some of the different components to keep in mind while mattress shopping.
You can also check out our complete mattress buying guide for even more tips and information.
Split King Mattresses
A split king mattress is the same size as a traditional king mattress, but it’s essentially made of two twin XL beds. Split king mattresses are ideal for two people who share the same bed but have different sleep preferences because each side can be customized to meet the sleeper’s needs. So if one person’s a stomach sleeper and needs a firm mattress and the other’s a side sleeper and needs a soft mattress, they can both get what they want. This is also great for sleepers who don’t want to feel their partner’s movements on the other side of the bed.
Mattress Sizes
- Twin – 38” x 75”
- Twin XL – 38” x 80”
- Full (Double) – 54” x 75”
- Queen – 60” x 80”
- King – 76” x 80”
- Split King – 38” x 80” (each mattress)
- California King – 72” x 84”
- California Split King – 36” x 84” (each mattress)
- Wyoming King – 84” x 84”
- Texas King – 80” x 98”
- Alaskan King – 108” x 108”
Adjustable Bed Frames
Another perk of split king mattresses is they’re compatible with adjustable bases. They can also work with other bed frames, so shoppers can choose to their liking.
Mattress Types
As you may have noticed in our above roundup of the best split king mattresses, we’ve highlighted a variety of beds. Let’s go over their construction differences.
- Foam: All-foam mattresses are known for pressure relief and sinkage, which can be beneficial for side sleepers and sleepers who deal with pain. The downside of all-foam beds is they’re not always as supportive and durable as other types of mattresses.
- Innerspring: Innerspring mattresses are primarily made of coils, but nowadays they tend to feature some foam as well for added pressure relief. The coils help make them bouncy and long-lasting.
- Hybrid: A hybrid mattress combines different materials in its construction — most often foam and coils. They can appeal to a lot of sleepers and offer a nice mix of pressure relief and support.
- Latex: A latex mattress is made with latex foam derived from either Talalay or Dunlop latex. These beds tend to be bouncy, responsive, durable, and naturally cooling. Latex is often paired with coils and other types of foam in mattresses.
Sleeping Position
Here’s a quick rundown of what mattresses might be good for the different sleeping positions.
- Back sleepers: These sleepers need a mattress that’s going to be both supportive and pressure relieving, while keeping their spine in alignment. They usually do best on hybrid or innerspring mattresses.
- Side sleepers: Side sleepers tend to want a softer mattress in order to get pressure relief and sinkage around their shoulders and hips. Foam mattresses and many hybrid mattresses tend to do well for them.
- Stomach sleepers: Stomach sleepers will want a firmer mattress to keep their hips lifted up and in line with their shoulders. We usually recommend they check out innerspring and hybrid mattresses.
- Combination sleepers: These are sleepers who switch between two or more sleeping positions at night. They tend to need a mattress that’s responsive and easy to move around on. We typically suggest looking at latex mattresses, hybrid mattresses, and innerspring mattresses.
Body Types
We categorize lightweight sleepers as weighing less than 130 pounds, average weight sleepers as weighing between 130 and 250 pounds, and heavy sleepers as weighing more than 250 pounds. Beds are typically going to feel firmer to lightweight sleepers than they do heavyweight sleepers. If you’re heavier in weight, you’re also going to need more support from a bed. We typically recommend heavier sleepers look for an innerspring mattress or one that was designed with them in mind.
Motion Isolation
Motion isolation is how well a bed keeps movement from traveling from one side of the bed to the other, so this can be really important for those who don’t sleep alone. If you sleep with a pet, child, or partner, you’ll want a mattress with low motion transfer, so you’re not disturbed by any of their movements in the night. Memory foam mattresses are known for having the lowest motion transfer.
Recap: The Best Split King Mattresses
| Mattress | Best For | Price (Queen) | Coupon | Review |
| Nectar | Editor’s Pick | $999 | Nectar Coupon | Read Our Review! |
| Saatva Memory Foam Hybrid | Combo Sleepers | $1,795 | Saatva Coupon | Read Our Review! |
| Helix Dusk | Hybrid | $1,249 | Helix Coupon | Read Our Review! |
| DreamCloud | Luxury | $1,798 | DreamCloud Coupon | Read Our Review! |
| Nolah Evolution | Customizable | $2,299 | Nolah Coupon | Read Our Review! |
| Bear Star | Value | $1,732 | Bear Coupon | Read Our Review! |
| Titan Plus | Heavy Sleepers | $1,249 | Brooklyn Bedding Coupon | Read Our Review! |
| TEMPUR-Cloud | Memory Foam | $1,999 | Tempur-Pedic Coupon | Read Our Review! |
FAQs
What kind of mattress goes on a split king?
A split king is basically two twin XL mattresses pushed together, so you can buy two twin XLs or you can buy a split king size if a mattress brand offers it.
Can you sleep in the middle of a split king bed?
There’s a natural gap in the middle of a split king mattress — so it may not be the most comfortable to sleep in, but you can fill it in or purchase an additional topper or pad for added comfort.
Can you use king sheets on a split king?
Yes, you can use king sheets on a split king or if you’d like individual sheets for each mattress, you can purchase specialty split king sheets. Many people also use two fitted twin XL sheets on each side and then a king size top sheet. It comes down to your preference.
How much does a split king cost?
Split kings are typically more expensive than king size mattresses. We’ve seen them range in price from $700 to around $4,000. Some brands will offer a split king deal, which may be less expensive than buying two twin XLs, so we recommend comparing the different options.
How do you keep a split king mattress from separating?
Most split king beds come with a device to keep them together, like an iron plate connector. You can also purchase a split king connector.
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.
For some of the mattresses on this page, we considered whether or not the company sold the mattress in a twin XL or split king size, whether the mattress would work for a variety of sleepers, how the bed scored on our tests for couples, and more. Click here to learn more about our methodology.
