Finding the best split king mattress can be tough, especially with so many options claiming to give you the “best sleep ever.” Picking the wrong one can lead to discomfort, poor sleep, or waking up hot and sweaty, which no one wants.
To make choosing easier, we’ve compiled a list of the best split king mattresses designed to accommodate different sleep styles and address common issues. Whether you need extra support, a cooler sleeping surface, or pressure relief, we’ve got you covered. With these choices, you’ll be ready to find a mattress that fits your needs, matches your sleep style, and helps you wake up feeling great every day.
Listen to our Podcast: Best Split King Mattress Round-up Review
An Expert And Helpful Guide To Help You Find The Best Split King Mattress
Best Split King Mattress
A premium hybrid mattress featuring a premium cooling pillow top and zoned lumbar support foam.
Credits: Helix
- Zoned coils provide advanced lumbar and edge support
- Provides exceptional pressure relief and motion isolation
- Optional cooling cover upgrade for a much cooler sleep
- May be a tad too soft for stomach sleepers
- Higher price tag compared to other hybrid models
Who It’s Best For
The Helix Midnight Luxe is a premium hybrid mattress combining plush comfort with excellent support. Designed with memory foam and zoned lumbar support, it contours your body while relieving pressure points. Its cooling GlacioTex cover ensures a cool, restful sleep every night.
This mattress is ideal for side sleepers and couples with different sleep preferences. Its medium firmness cushions pressure areas like the shoulders and hips while maintaining proper spinal alignment. If you toss and turn or need tailored support, the Midnight Luxe is crafted with you in mind.
Say goodbye to restless nights caused by discomfort, heat, or inadequate support. The Helix Midnight Luxe addresses these issues with targeted comfort and advanced cooling technology, making it a worthwhile investment for anyone seeking deeper, more rejuvenating sleep.
Who It’s Not The Best For
The Helix Midnight Luxe may not suit sleepers who prefer an ultra-firm feel or need minimal cushioning. Stomach sleepers who want a very firm mattress for extra support might find this too soft. For these needs, the Helix Twilight or another firmer model would be a better match.
If you’re looking for an all-foam mattress for zero motion transfer, this hybrid design might not be ideal. While it reduces motion, couples highly sensitive to movement might prefer a memory foam-only option. Consider alternatives like the Helix Dawn Luxe for added stability.
This mattress also isn’t the best for budget shoppers prioritizing price over luxury features. Its premium design and advanced cooling make it an investment. For a simpler, affordable option, the core Helix line offers excellent quality at a lower cost.
“Very happy with this purchase. It was expensive but the Helix Midnight Luxe hasn’t disappointed…”
What It’s Made Of
The Helix Midnight Luxe features premium materials, including Memory Plus Foam for contouring support and wrapped coils for enhanced durability and motion isolation. Its zoned lumbar support targets pressure relief for hips and shoulders while keeping your spine aligned. The breathable GlacioTex Cooling Cover draws heat away, ensuring a cool and comfortable sleep.
These high-quality materials combine to provide balanced comfort, ideal for side sleepers and those with pressure-point discomfort. The hybrid construction offers both plush cushioning and sturdy support, making it a standout choice for sleepers seeking restorative rest without overheating or sagging over time.
What Are Its Specifications
Why It’s The Best Split King Mattress Overall
Awarded as the Best Split King Mattress by Forbes Vetted 2024, and recognized by GQ Sleep Awards, Wired Recommends, and TIME as a top choice, the Helix Midnight Luxe stands out for its hybrid design. Memory Plus Foam, zoned lumbar support, and the GlacioTex Cooling Cover deliver personalized comfort, support, and temperature regulation.
This mattress solves issues like pressure-point discomfort, overheating, and motion transfer, making it perfect for couples with different sleep preferences. Its accolades affirm its unmatched quality, offering premium sleep that caters to diverse needs and elevates your rest to luxurious standards.
Helix Midnight Luxe
Helix Midnight Luxe
Learn more: Helix Midnight Luxe Review
A luxury model featuring a plush Euro topper, soothing foams, and tri-zoned support.
Credits: Nolah
- The Zoned Airfoam and 8” coils provide extra support
- Minimal noise and cooling is outstanding which is great for couples
- Comes with 3 different firmness options: Plush, Luxury Firm, and Firm
- May be too expensive for some budget-conscious shoppers
- The mattress may be too big to set up and move around
Who It’s Best For
The Nolah Evolution 15” is a luxury hybrid mattress combining Zoned AirFoam with a HDMAx Tri-Zone Coils system for exceptional pressure relief, spinal alignment, and cooling. Its advanced construction ensures durability and consistent comfort for years.
This mattress is perfect for side sleepers, especially couples, as the split king option allows personalized comfort while reducing motion transfer. Its medium firmness cushions shoulders and hips, ensuring restful sleep in any position.
If you struggle with overheating, joint pain, or restless nights, the Nolah Evolution 15” provides cooling technology, targeted support, and plush comfort to enhance sleep quality and relieve discomfort.
Who It’s Not The Best For
The Nolah Evolution 15” offers plush comfort, advanced cooling, and zoned support, making it a standout hybrid mattress.
Designed for side sleepers, its Zoned AirFoam technology and reinforced edges deliver pressure relief and durability. For side sleepers seeking pressure-point relief, cooling, and motion isolation, the Nolah Evolution 15″ solves these problems effortlessly. It’s an excellent choice for sleepers prioritizing comfort and spinal alignment.
However, this mattress may not suit those who prefer an ultra-firm surface or need minimal cushioning, such as strict stomach sleepers. They might find the plush top too soft and should consider firmer options instead.
“We both actually sleep now! I’m sleeping in my bed again and not getting up from pain! My spouse sleeps like a baby now.…”
What It’s Made Of
The Nolah Evolution 15” is designed with a breathable Organic Cotton and ArcticTex cover that wicks away moisture and heat, keeping sleepers cool and dry. A Cooling Quilted Euro Topper adds 2 inches of cushioned foam, drawing excess heat from the body for enhanced comfort.
Its 4-inch AirBreath gusset boosts airflow, allowing trapped heat to escape. Meanwhile, the Zoned AirFoam HD layer offers targeted support with softer zones for the shoulders and firmer zones for lumbar alignment. Lastly, HDMax Tri-Zone coils and a Stabilizing Base Foam ensure lasting support, stability, and strong edge reinforcement for deep, restful sleep.
What Are Its Specifications
Why It’s The Best Split King Mattress for Side Sleepers
The Nolah Evolution 15”, awarded Best Mattress for Side Sleepers by Sleep Foundation 2024, features premium cooling Zoned AirFoam for pressure relief. Its quilted Euro-top regulates temperature, while HDMax Tri-Zone coils ensure targeted support. High-resilience foam layers add durability and long-lasting comfort.
These materials create a plush yet supportive surface, ideal for side sleepers needing relief at the hips and shoulders. The cooling foam prevents overheating, while the coils reduce motion transfer for undisturbed sleep.
Nolah Evolution 15”
Nolah Evolution 15”
Learn more: Nolah Evolution 15″ Review
A hybrid mattress featuring Variflex compression support and supreme response comfort foam.
Credits: Brooklyn Bedding
- Comes in 3 firmness levels: Soft, Medium-Firm, and Firm
- Allows couples to tailor each side to their individual comfort preferences
- Offers edge-to-edge support for a wider and more usable sleep surface
- Some users might not find the firmness level they’re looking for
- Minimal sinkage that lacks deep body contour
Who It’s Best For
The Brooklyn Bedding Signature Hybrid offers a perfect blend of soft comfort and firm support. With its memory foam top, sturdy coils, and cooling quilted cover, it’s designed for a cool and comfortable night’s sleep. Available in three firmness levels, it fits a variety of sleep styles.
This mattress is great for side, back, or stomach sleepers who need pressure relief and proper spine support. Couples will love its excellent motion isolation, ensuring undisturbed rest. If you often wake up hot, feel unsupported, or experience aches, this mattress solves those issues, making it a top choice for better sleep.
Who It’s Not The Best For
The Brooklyn Bedding Signature Hybrid may not be ideal for sleepers over 300 lbs. Its weight limit might not provide the necessary support, and a mattress like the Titan Plus, designed for heavier sleepers, would be a better fit. This mattress might also not work for those looking for an ultra-soft or ultra-firm feel, as its firmness levels range from soft to firm but not extreme.
If you’re looking for a completely bounce-free mattress, the hybrid design with coils may not fully meet your needs. A full memory foam option might suit those who prefer zero motion transfer.
“Iit was perfectly comfortable on the first night! I have rotated it once so far. I do not see any body impressions yet…”
What It’s Made Of
The Brooklyn Bedding Signature Hybrid is built with high-quality materials for comfort and support. It features a cooling quilted top, soft foam layers for pressure relief, and VariFlex transition foam for a smooth shift to the supportive base.
The 8-inch individually encased Ascension coils add durability and excellent motion isolation.These materials work together to provide a cool, cozy sleep surface while keeping your spine aligned. The hybrid design balances cushioning and support, making it great for reducing aches and ensuring a restful night’s sleep for all sleep styles.
What Are Its Specifications
Why It’s The Best Split King Hybrid Mattress
The Brooklyn Bedding Signature Hybrid is recognized as the best split king hybrid mattress for its blend of comfort, support, and versatility. Its hybrid design features cooling foam, sturdy coils, and a quilted top, ensuring pressure relief, motion isolation, and temperature regulation. With three firmness options, it’s perfect for various sleep styles.
This mattress solves problems like overheating, restless sleep, and pressure-point discomfort. Whether you’re a side sleeper, back sleeper, or sharing the bed with a partner, it offers a supportive and peaceful sleep experience, making it an excellent choice for anyone seeking comfort and quality.
Brooklyn Bedding Signature Hybrid
Brooklyn Bedding Signature Hybrid
Learn more: Brooklyn Bedding Signature Hybrid Review
An ultra luxury hybrid mattress that balances support, ultra-responsive body contouring, and softness.
Credits: Puffy
- Provides superior pressure relief and targeted lumbar support
- Features best-in-class cooling technologies to minimize heat retentio
- Responsive layers make it easier to switch sleeping positions
- May not be too firm for stomach sleepers or people weighing over 250 lbs.
- It’s foam-encased and its edge support may not be as supportive as others
Who It’s Best For
The Puffy Lux Mattress offers a luxurious combination of soft comfort and firm support. Its Cooling Cloud Foam and dual foam layers provide pressure relief, while contour-adapt coils offer targeted support and motion isolation. The cool-touch cover ensures a refreshing sleep.
This mattress is ideal for side and back sleepers who prefer a soft, plush feel without sacrificing support. It’s great for couples needing undisturbed sleep or individuals seeking comfort for pressure points. If you struggle with overheating, aches, or restless nights, the Puffy Lux Mattress solves these problems with cooling features and adaptive support for a peaceful sleep.
Who It’s Not The Best For
The Puffy Lux Mattress may not be ideal for stomach sleepers or those who prefer a very firm mattress. Its medium-plush feel might lack the support needed for proper spinal alignment in these cases. For firmer options, consider the Puffy Royal or other firm mattresses.
Additionally, this mattress is not designed for sleepers over 300 lbs. Heavier individuals might benefit from a model like the Puffy Royal, which offers better weight support. If you need ultra-firm support or a mattress tailored for heavy sleepers, this may not solve your needs.
“Sleeping on Puffy feels pretty darn luxurious…”
What It’s Made Of
The Puffy Lux Mattress is crafted with high-quality materials for comfort and support. It features Cooling Cloud Foam and Plush Dual Cloud Foam, which provide pressure relief and a soft, cushioned feel. The Climate Fiber Layer and cool-touch cover help regulate temperature for a refreshing night’s sleep.
Beneath the comfort layers, Cloud Comfort Pressure Relief Foam and contour-adapt coils offer targeted support and motion isolation. These materials work together to relieve pressure points, reduce tossing and turning, and ensure a peaceful sleep for side and back sleepers.
What Are Its Specifications
Why It’s The Best Soft Split King Mattress
The Puffy Lux Mattress, recognized as the best soft split king mattress, offers a perfect mix of soft comfort and sturdy support. Its Cooling Cloud Foam, adaptive coils, and plush layers ensure excellent pressure relief and a cool sleep surface. Designed for side and back sleepers, it combines luxury and functionality.
This mattress solves common problems like overheating, back pain, and pressure-point discomfort. With its cooling technology, soft feel, and lifetime warranty, it’s a great option for anyone wanting a restful and refreshing sleep experience. Its premium design makes it a top choice for better sleep quality.
Puffy Lux Mattress
Puffy Lux Mattress
Learn more: Puffy Lux Mattress Review
A high-performance hybrid mattress that offers a high-quality blend of hyperflex fabric and an advanced coil system.
Credits: DLX
- Features customizable firmness levels and a split configuration top layer
- Allows couples to tailor each side to their individual comfort preferences
- Offers edge-to-edge support for a wider and more usable sleep surface
- Might be considered expensive for those on a tight budget
- Some users might not find the firmness level they’re looking for
Who It’s Best For
The DLX Premier Hybrid Mattress is a 14-inch hybrid that blends cooling fabrics, responsive foam, and durable coils. It offers great motion isolation, pressure relief, and three firmness options, making it highly versatile for different sleep styles. Its cooling Hyperflex Fabric ensures a refreshing sleep experience.
This mattress is perfect for combination sleepers who switch between side, back, and stomach positions. It’s also ideal for couples with different firmness needs or those seeking targeted support and cushioning. If you struggle with pressure-point pain, overheating, or restless sleep, this mattress solves these issues, providing personalized comfort and reliable support.
Who It’s Not The Best For
The DLX Premier Hybrid Mattress may not be ideal for those looking for an ultra-firm or ultra-soft mattress, as its firmness ranges from soft to firm but doesn’t cater to extreme preferences. Customers who need a highly specific feel might consider a specialized foam or extra-firm option.
Additionally, sleepers over 300 lbs might not find the support they need with this model. For added weight capacity, the DLX MemoryMax Hybrid is a better choice. This mattress also isn’t designed for those who prefer all-foam options, as its hybrid design includes coils for added bounce and airflow.
“I’ve been sleeping on this mattress for about a week and so far its great!”
What It’s Made Of
The DLX Premier Hybrid Mattress is featured with top-quality materials for comfort and support. It features Airsoft Viscose Fiber and LoftAdapt Foam for a soft, breathable surface that relieves pressure points. FusionBalance Performance Foam ensures a perfect mix of cushioning and responsiveness.
Its LinkBridge Transitional Foam and Advanced Hybrid Technology Coil System provide targeted support, durability, and great motion isolation. The luxurious Hyperflex Fabric keeps sleepers cool and comfortable throughout the night. These materials work together to offer customized support, temperature regulation, and a restful sleep for all sleep styles.
What Are Its Specifications
Why It’s The Best Cooling King Size Mattress
The DLX Premier Hybrid Mattress, honored as the Best Split King Mattress for Combination Sleepers, offers unmatched versatility and comfort. Its 14-inch hybrid design features responsive foam, durable coils, and cooling fabrics, making it perfect for side, back, and stomach sleepers.
With three firmness options, it adapts to diverse sleep needs.This mattress solves common problems like pressure-point pain, restless sleep, and overheating. Its motion isolation and targeted support make it great for couples or individuals seeking tailored comfort. With a lifetime warranty and premium construction, it’s an excellent choice for a refreshing and peaceful sleep experience.
DLX Premier Hybrid Mattress
DLX Premier Hybrid Mattress
Learn more: DLX Premier Hybrid Mattress
More On The Best Split King Mattress
Things To Consider When Looking For The Best Split King Mattress
Weight
Weight is an important factor when choosing the best split king mattress because it affects the support and durability you need. Heavier people should go for firmer mattresses with strong coils to avoid sagging and make the mattress last longer.
On the other hand, lighter people might prefer softer mattresses that mold to their body better. Picking a mattress that suits your weight helps you stay comfortable and relieves pressure on your body.
Sleeping Position
Side Sleeper
Side sleepers should look for the best split king mattress that relieves pressure on their shoulders and hips. Mattresses made with memory foam or hybrid designs are great because their softer layers shape to your body. This helps reduce pressure points, avoids discomfort, and keeps your spine in the right position while you sleep.
Back Sleeper
For back sleepers, the best split king mattress should offer firm, even support to keep the spine’s natural curve. Medium-firm mattresses with responsive foam or coils work well because they spread your weight evenly and help prevent lower back pain. A balanced mattress provides comfort without letting your body sink too much.
Stomach Sleeper
Stomach sleepers need the best split king mattress with firm support to keep their hips raised and prevent back strain. A firmer mattress with little sinking helps keep the neck and spine aligned, reducing pressure. Hybrid or latex mattresses are often the best choices for this sleeping position.
Combination Sleeper
Combination sleepers, who change positions during the night, need the best split king mattress with adaptive support and responsive foam. Hybrid mattresses are a great choice because they offer a mix of contouring and bounce. This makes it easy to switch positions while staying comfortable all night.
On-Edge Sleeper
For on-edge sleepers, the best split king mattress should have reinforced edge support to prevent sagging and provide stability. Hybrid and innerspring mattresses with sturdy perimeter coils are perfect, as they give reliable support for those who sleep or sit near the edges of the bed.
Helix Midnight Luxe
Helix Midnight Luxe
Material
The materials used in the best split king mattress affect its comfort, durability, and support. Top-quality options like memory foam, latex, or hybrid designs provide unique benefits, such as pressure relief and cooling. Picking the right material is essential to make sure your mattress suits your sleep needs.
Mattress Type
Memory Foam
Memory foam is a popular choice for the best split king mattress due to its excellent contouring and pressure relief. This material molds to your body, providing comfort and reducing pressure points. It’s ideal for side sleepers or anyone needing extra cushioning.
Latex
Latex mattresses are an excellent choice for the best split king mattress, known for their natural responsiveness and durability. They are breathable and hypoallergenic, making them ideal for hot sleepers or people with allergies. Latex also offers a bouncier feel compared to memory foam.
Organic
For eco-conscious buyers, the best split king mattress made with organic materials is a great option. These mattresses use natural latex, organic cotton, or wool, providing a sustainable and non-toxic sleep surface. They’re also perfect for people sensitive to synthetic materials.
Innerspring
Innerspring mattresses are a timeless option for the best split king mattress, built with a coil-based support system. They provide great bounce and airflow, making them perfect for back or stomach sleepers. Innerspring mattresses also deliver strong edge support for added stability.
Hybrid
Hybrid mattresses blend the best qualities of foam and innerspring, making them a versatile choice for the best split king mattress. They offer pressure relief, cooling, and long-lasting support, making them suitable for all sleeping positions. Hybrids are especially ideal for couples with different sleep preferences.
Nolah Evolution 15”
Nolah Evolution 15”
Support
Support is important in the best split king mattress to maintain proper spinal alignment and ease pressure on joints. Mattresses with zoned support systems or advanced coil technology help distribute weight evenly, ensuring your body stays well-supported all night.
Firmness Level
Soft
Soft mattresses are ideal for side sleepers looking for the best split king mattress that offers deep cushioning. These mattresses relieve pressure on sensitive areas like hips and shoulders, providing a plush, cloud-like feel.
Medium-Soft
A medium-soft best split king mattress balances cushioning and support, making it suitable for lightweight sleepers. It offers gentle contouring without feeling overly firm, creating a comfortable sleep surface for side and back sleepers.
Medium
Medium-firm mattresses are a versatile choice for the best split king mattress, suiting a wide range of sleepers. They provide enough cushioning for pressure relief while maintaining firm support for proper spinal alignment, especially for back sleepers.
Medium-Firm
Medium-firm mattresses are the most popular option for the best split king mattress. They offer the perfect balance of softness and support, accommodating various sleep positions. This firmness level is especially beneficial for combination sleepers.
Firm
Firm mattresses are ideal for stomach sleepers seeking the best split king mattress. They prevent the hips from sinking too deeply, maintaining proper alignment. Firmer options also work well for heavier sleepers who need extra support.
Brooklyn Bedding Signature Hybrid
Brooklyn Bedding Signature Hybrid
Breathability
Breathability is essential in the best split king mattress, as it prevents overheating and promotes airflow. Mattresses with open-cell foams, breathable covers, and coil systems enhance ventilation, keeping you cool and comfortable all night.
Temperature Regulation
Cooling Cover
The best split king mattress with a cooling cover wicks away heat and moisture for a refreshing sleep. This feature is ideal for hot sleepers needing a consistently cool surface.
Quilted-Cotton Topper
Quilted-cotton toppers on the best split king mattress add a breathable layer for better airflow. They enhance comfort while keeping you cool, making them perfect for warm climates.
Gel-Infused Memory Foam
Gel-infused memory foam in the best split king mattress disperses body heat for temperature control. It combines contouring comfort with cooling benefits, ideal for hot sleepers or those in warm environments.
Open-Cell Latex
Open-cell latex in the best split king mattress promotes airflow and prevents heat retention. It’s a breathable, eco-friendly material that ensures a cool and supportive sleep surface.
Fabric-Encased Pocket Coil
Fabric-encased pocket coils in the best split king mattress improve airflow while providing targeted support. They enhance breathability and help regulate temperature for a cooler, more comfortable sleep experience.
Puffy Lux Mattress
Puffy Lux Mattress
Trustworthiness
Trustworthiness is vital when selecting the best split king mattress. Look for brands with positive reviews, transparent policies, and certifications to ensure you’re investing in a high-quality product that meets your needs.
Quality Assurance
Budget
When choosing the best split king mattress, consider your budget and prioritize value over cost. A higher price may offer better materials and features, ensuring a longer-lasting investment.
Trial
The best split king mattress should come with a trial period, allowing you to test its comfort and support. Look for options with risk-free trials to ensure the mattress suits your sleep needs.
Guarantees
Guarantees on the best split king mattress provide peace of mind, assuring you of its quality and performance. Choose a mattress with clear guarantees to feel confident in your purchase.
Warranty
A strong warranty protects your investment in the best split king mattress, covering defects or issues. Look for lifetime warranties or extended coverage for added security.
Durability
Durability is important for the best split king mattress, ensuring it retains its comfort and support over time. High-quality materials and sturdy construction guarantee long-lasting performance, making it a smart investment.
DLX Premier Hybrid Mattress
DLX Premier Hybrid Mattress
How We Chose The Best King Size Mattress?
The best king size mattresses from this list were chosen by considering various factors such as customer reviews, expert opinions, mattress features, durability, comfort, support, and value for money. We conducted an extensive research to evaluate the performance of different king size mattresses in terms of their materials, construction, cooling properties, motion isolation, and pressure relief.
We aim to provide a comprehensive selection of king size mattresses that cater to a wide range of sleep preferences and needs, ensuring that consumers can make an informed decision when choosing the perfect mattress for their sleep comfort. By offering detailed insights into each mattress’s features, benefits, and potential drawbacks, we empower individuals to find the right mattress for them.
