Best Mattress for Split King: Top Comfort and Adjustable Bed Sets Reviewed

Last Updated on December 13, 2025 by Cassie Moorhead

There’s nothing more frustrating than waking up sore or restless after sharing a bed with your partner. When one of you wants to stretch out and the other prefers a firmer feel, a regular mattress just doesn’t cut it.

The good news? A split king mattress can solve this problem, giving each person their own perfect comfort zone. Choosing the right mattress can transform your sleep and your daily energy. It makes getting up easier and your nights more peaceful.

In this article, you’ll find carefully chosen split king mattresses that fit different needs and preferences. Whether you want cooling gel foam, adjustable features, or motion isolation, we’ve got you covered. Keep reading to discover the best options that will help you and your partner sleep better and wake up refreshed.

Celestial Sleep Gel Memory Foam Mattress In A Box

The Celestial Sleep Gel Memory Foam Mattress in a Box is ideal for those seeking a soft, supportive mattress with advanced cooling features. Perfect for side sleepers, couples with split king beds, and anyone prioritizing eco-friendly, certified materials, this mattress offers a comfortable sleep experience with peace of mind due to its CertiPUR-US® and Oeko-Tex certifications. It is especially suited for individuals who want a high-quality mattress made in the USA and value the convenience of a mattress delivered in a box.

Pros:

• Made with CertiPUR-US® certified foam ensuring safety and low emissions
• Gel-infused memory foam provides excellent cooling and pressure relief
• 12-inch thickness offers ideal softness and support for side sleepers
• Split king size option available for adjustable bed compatibility
• Fiberglass-free and environmentally friendly with Oeko-Tex certification
• Conveniently shipped in a box for easy setup

Cons:

• May be too soft for stomach sleepers or those who prefer a firmer mattress
• Initial off-gassing odor typical of memory foam mattresses
• Limited color options available, only charcoal grey

The Celestial Sleep Gel Memory Foam Mattress features a multi-layer design that combines gel-infused memory foam with supportive base layers to provide both comfort and durability. The gel infusion helps to regulate temperature by dissipating heat, ensuring a cooler night’s sleep compared to traditional memory foam. This mattress conforms closely to the body, reducing pressure points which can alleviate aches and improve overall sleep quality.

Additionally, the mattress is fiberglass-free and uses foam certified by CertiPUR-US® and Oeko-Tex, which guarantees that harmful chemicals and irritants are minimized, making it an excellent choice for health-conscious consumers. The 12-inch thickness strikes a balance between softness and support, ideal for side sleepers who need cushioning around shoulders and hips. Its split king design adds versatility for couples who want different firmness levels or use adjustable bed frames.

To buy this product, click here.

Amada Split King Adjustable Bed Frame And 14 Inch Cooling Gel Memory Foam Mattress Set

The Amada Split King Adjustable Bed Frame and 14 Inch Cooling Gel Memory Foam Mattress Set is perfect for individuals seeking enhanced comfort and customizable support during sleep. Ideal for couples who want personalized incline settings or anyone experiencing back pain, circulation issues, or those who simply want to enjoy the luxury of a massage feature and convenient tech integrations. This set caters to users desiring a blend of advanced functionality and medium firm support for a restful night’s sleep.

Pros:

• Adjustable head and foot incline for personalized comfort.
• Includes a massage feature to help relax muscles and reduce tension.
• Wireless remote control for easy operation without hassle.
• Built-in USB ports allowing convenient device charging.
• LED night light enhances nighttime visibility without disturbing sleep.
• Comfortable 14 Inch Cooling Gel Memory Foam Mattress that regulates temperature.
• Medium firm support suitable for a wide range of sleepers.
• Durable black and gray design complements modern bedroom aesthetics.

Cons:

• Higher price point compared to standard mattress sets.
• Split king size may require larger bedroom space.
• Some users might find the massage feature intensity limited.

The Amada Split King Adjustable Bed Frame is designed with versatility and convenience in mind. Its dual adjustable feature allows each side of the bed to be independently positioned, making it a great choice for couples with different comfort preferences. The wireless remote adds ease to adjusting the settings, while the integrated USB ports ensure that your devices stay charged throughout the night. The LED night light provides a subtle glow, perfect for navigating the room without disrupting your sleep cycle.

Complementing the bed frame is the 14 Inch Cooling Gel Memory Foam Mattress, engineered to provide medium firm support that adapts to your body’s contours. The cooling gel technology helps maintain an optimal sleeping temperature by dissipating heat, which is especially beneficial for hot sleepers. Together, the adjustable frame and high-quality mattress create a sleep environment that promotes relaxation, reduces pressure points, and enhances overall sleep quality.

To buy this product, click here.

Split King Adjustable Bed Frame With Mattress

The Split King Adjustable Bed Frame with Mattress is perfect for individuals seeking customizable comfort and enhanced sleep quality. Ideal for couples who prefer different sleeping positions, people with back pain, or those looking to improve sleep hygiene with advanced features like massage and anti-snore functionality. If you want a versatile bed that adapts to your lifestyle and promotes restful sleep, this product is for you.

Pros:

• Includes a 14” Luxury Hybrid Mattress providing medium soft comfort.
• Smart APP Control allows easy adjustment of head and foot incline.
• Massage feature helps to relax muscles and improve circulation.
• Zero Gravity positioning reduces pressure points for enhanced comfort.
• Anti-Snore function promotes better breathing during sleep.
• Quick 5 Minutes Installation for user convenience.
• Split King design offers individualized control for each side of the bed.

Cons:

• Relatively heavy at 201 pounds, which may require assistance during setup.
• Price point could be higher compared to traditional bed frames and mattresses.
• May require smartphone compatibility for full use of the Smart APP Control.

The Split King Adjustable Bed Frame with Mattress combines advanced technology and ergonomic design to enhance your sleep experience. Its adjustable head and foot incline options allow users to find the perfect position for reading, watching TV, or sleeping, which can alleviate pressure on the spine and improve overall comfort. The integration of the Smart APP Control makes it simple to customize settings with just a few taps, adding convenience and personalization to your nightly routine.

Beyond adjustability, this bed frame features a massage function that promotes relaxation and can help reduce muscle tension. The Zero Gravity mode simulates a weightless position, which is beneficial for reducing swelling and enhancing circulation. Additionally, the anti-snore feature assists in keeping airways open, making it a great choice for light snorers. With a quick 5 minutes installation process and the durable build from ESHINE, this product offers a blend of comfort, technology, and practicality for a superior sleeping experience.

To buy this product, click here.

Celestial Sleep Gel Memory Foam Mattress

The Celestial Sleep Gel Memory Foam Mattress in a Box is an ideal choice for individuals seeking a comfortable and supportive sleep surface with medium firmness. Perfect for those who prefer a balance between softness and support, this mattress suits side and back sleepers alike. It is especially beneficial for people who value quality certifications like CertiPUR-US® and Oeko-Tex, ensuring a safe and eco-friendly sleeping environment.

Pros:

• Made in the USA with high-quality materials
• CertiPUR-US® certified foam guarantees no harmful chemicals
• Oeko-Tex certified for eco-friendly and safe materials
• 10-inch medium firmness provides balanced comfort and support
• Charcoal grey color adds a modern aesthetic
• Split King size offers versatility for adjustable beds
• Fiberglass-free construction enhances safety and durability

Cons:

• Weighs 78 pounds, which may be heavy for some to handle during setup
• May retain some heat despite gel infusion for hot sleepers
• Medium firmness might not suit those who prefer very soft or very firm mattresses

The Celestial Sleep Gel Memory Foam Mattress features a 10-inch profile combining gel-infused memory foam with supportive base layers. The gel infusion helps regulate temperature by dissipating heat, promoting a cooler and more comfortable night’s rest. Memory foam contours to the body, providing pressure relief and reducing motion transfer, which is ideal for couples or those who are easily disturbed by movement.

Designed with safety and quality in mind, this mattress uses CertiPUR-US® certified foam that is free of harmful chemicals and meets rigorous performance standards. Additionally, the Oeko-Tex certification confirms the absence of harmful substances, making it a healthier choice for sensitive sleepers. Its fiberglass-free construction further enhances safety, preventing potential irritation or damage over time. Overall, the mattress offers a balanced combination of comfort, support, and peace of mind for buyers.

To buy this product, click here.

Renanim Split King Medium Soft Cooling Gel Memory Foam Mattress

The Renanim Split King Medium Soft Cooling Gel Memory Foam Mattress is ideal for individuals seeking a perfect balance of comfort and support with a cooling effect. This mattress is especially suitable for those who experience night sweats, prefer a medium-soft feel, or require motion isolation for undisturbed sleep. It is also a great choice for couples who want a split king size mattress that adapts to different firmness preferences.

Pros:

• Breathable comfort ensures a cooler sleeping surface throughout the night.
• Effective motion isolation minimizes disturbances from a partner’s movements.
• Medium soft feel provides balanced support and pressure relief for various sleeping positions.
• Convenient mattress in a box packaging allows for easy delivery and setup.
• Durable 14-inch height offers substantial cushioning and longevity.

Cons:

• Heavier weight at 127 pounds may require extra effort during setup.
• Medium soft firmness may not suit those who prefer very firm or very soft mattresses.

The Renanim Split King Medium Soft Cooling Gel Memory Foam Mattress features advanced cooling gel-infused memory foam that actively dissipates heat to maintain an optimal sleeping temperature. This ensures users stay comfortable even on warm nights, reducing the likelihood of night sweats and restless sleep. The breathable materials further enhance airflow, promoting freshness and hygiene.

Additionally, the mattress excels in motion isolation, making it perfect for couples. Movements on one side of the mattress do not transfer to the other side, allowing both partners to enjoy uninterrupted rest. The 14-inch thickness provides ample cushioning and support, contouring to the body’s shape for pressure relief and spinal alignment. Overall, this mattress combines comfort, functionality, and convenience for a superior sleep experience.

To buy this product, click here.

Frequently Asked Questions

What Is The Best Mattress Type For Split King Beds?

Memory foam and hybrid mattresses offer excellent comfort and support for Split King beds. They contour to your body and reduce motion transfer.

Are Adjustable Bed Frames Compatible With Split King Mattresses?

Yes, adjustable bed frames like the Amada Split King work perfectly with Split King mattresses. They provide customizable head and foot incline options.

How Does Cooling Gel Foam Improve Mattress Comfort?

Cooling gel foam regulates temperature by dissipating heat. It keeps the mattress cool and comfortable throughout the night.

What Certifications Should I Look For In Split King Mattresses?

Look for CertiPUR-US®, Oeko-Tex, and fiberglass-free certifications. These ensure the mattress is safe, non-toxic, and eco-friendly.

Can I Control Adjustable Split King Beds With A Smartphone?

Yes, some models offer smart app control for easy adjustment. Features include massage, zero gravity, and anti-snore settings.

How Thick Should A Split King Mattress Be For Optimal Comfort?

Mattress thickness ranges from 10 to 14 inches. Thicker mattresses often provide better support and durability for Split King beds.

Conclusion

Choosing the best mattress for a split king bed depends on your comfort and needs. Each mattress on the list offers unique features like cooling gel foam, adjustable frames, and massage options. These mattresses provide good support and help reduce motion transfer between partners.

Whether you prefer soft, medium, or firm support, there is a perfect option for you. Many come with easy setup and extra features like USB ports and wireless controls. Remember, a good mattress improves sleep quality and overall health. Take your time to select one that matches your sleeping style and preferences.

Sleep well and enjoy the benefits of a split king mattress designed for comfort and convenience.