King Mattress, 2026 Upgraded 12 Inch King Size Mattress in a Box, Cool Gel Memory Foam Hybrid Mattress, Individual Pocket Spring, Back Pain Relief, Motion Isolation, Strong Edge Support, CertiPUR-US
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Availability:
In Stock.
Arrives
Sunday, May 17
Size: King
Style: 12 Inch
Features
- Upgraded 2.0 Wire Gauge Coils for Stronger Back Support: Our hybrid king mattress features engineered Upgraded 2.0-gauge pocket springs that deliver 30% heavier-duty supportbuilt specifically for back sleepers, side sleepers, and higher-body-weight individuals who need reliable support. The medium-firm feel keeps your spine neutrally aligned, while gel memory foam cradles hips, shoulders, and lower back. Whether you struggle with chronic back pain, sciatica, or morning stiffness.
- 89% Motion Isolation for Undisturbed Sleep: Each individually wrapped coil moves independently, keeping motion transfer localized. Our testing confirms over 89% reduction in cross-bed movement, so couples sleep undisturbedno waking from tossing, turning, late-night bathroom trips, or restless legs. As one of the best king hybrid mattresses for couples, its 7-layer structure ensures zero partner disturbance, deep restful sleep, and uninterrupted comfort night after night.
- Cool & Breathable Sleep with Gel Memory Foam: Hot sleepers will love the all-night cool comfort of this 12 inch king mattress. The cooling gel memory foam layer draws heat away from your body, while the moisture-wicking knit cover enhances airflow and breathability. Together they prevent night sweats, regulate temperature, and maintain a consistently cool sleep surfacewithout overheating, even in warm weather or climates.
- Non-Toxic & Fiberglass-Free: Your safety comes first. Our king size mattress 12 inch uses CertiPUR-US certified foams and OEKO-TEX certified fabrics, with zero fiberglass, no formaldehyde, heavy metals, phthalates, or harsh chemical odors. Enjoy safe, clean sleep with zero off-gassing or irritationideal for kids, pets, and anyone with allergies or sensitivities. If you want a king size memory foam mattress, this is your choice.
- 12 Inch King Mattress in a Box, Easy Setup: This 12 inch king mattress in a box arrives rolled, compressed, and delivered directly to your door. Simply unbox, unroll, and let it fully expand within 2472 hours for complete edge-to-edge support. It fits most king size bed frame, platform beds, slatted frames, box springs, adjustable bases, and daybedsno box spring required. Backed by responsive customer support, setup is quick and hassle-free.
Brand: SUAYEA
Size: King
Product Dimensions: 80"L x 76"W x 12"Th
Item Weight: 56.96 Pounds
Item Firmness Description: Medium
Top Style: Pillow Top
Number of Layers: 7
Fill Material: Memory Foam
Special Feature: Pressure Relief
Color: Blue
Product Dimensions: 80 x 76 x 12 inches
Item Weight: 57 pounds
Manufacturer: SUAYEA
Item model number: B0GFDQ89KK
Date First Available: January 31, 2026
Age Range Description: Aldult
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, May 17
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: King
Style: 12 Inch
Best sleep ever
Reviewed in the United States on March 12, 2026 by Ana Segovia
I got this hybrid mattress after years of waking up with back pain and stiffness, and the difference has been absolutely remarkable from the very first night. The combination of gel memory foam and pocket springs creates the perfect balance of cushioning and support that my back desperately needed. The medium firm feel cradles pressure points without sinking too deeply, keeping my spine properly aligned regardless of whether I sleep on my side or back. Within just a few nights I noticed significantly less morning soreness and stiffness, which has genuinely improved my overall quality of life and daily energy levels. The motion isolation is impressively effective and my partner's nighttime movements no longer disturb my sleep at all. I used to wake up every time they shifted positions or got up for water, but now I sleep completely undisturbed through the night. The edge support is noticeably strong, allowing me to sit on the side of the bed without that uncomfortable sinking feeling that cheaper mattresses develop quickly. The cooling gel foam keeps the sleep surface comfortable throughout the night without overheating, which was a major issue with my previous all foam mattress. Setup was straightforward with the mattress expanding fully within a few hours of unboxing. The sixteen inch profile feels luxurious and substantial, giving the bedroom an elevated and premium appearance. This mattress has been a life changing investment and I cannot recommend it highly enough.
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Reviewed in the United States on February 10, 2026 by duder
This mattress advertises cool gel infusion, and I can confidently say it lives up to it. It expanded quickly and evenly within a few hours and reached its full shape well before the advertised time. There was no weird smell or off-gassing that I’ve experienced with other foam mattresses, which was a huge relief. I tend to sleep hot, and most memory foam beds just end up trapping heat. Not this one. The cool gel layer feels cool to the touch, and even on nights when it’s 75°F in the room, I stay comfortable without tossing and turning. I’ve noticed a real difference compared to my old all-foam mattress, which would leave me waking up sweaty or flipping sides trying to get cool. he hybrid design is my favorite part. The combination of responsive coils and memory foam gives this mattress a balanced feel. Putting a fitted sheet on is a breeze thanks to the mattress’s perfect standard sizing and firm enough edges. I used to slide off the edge of my old mattress when getting in or out of bed, but this one has sturdy edge support that makes the whole surface feel usable , even if you like sprawling out like I do.
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Reviewed in the United States on February 25, 2026 by Joyce Yien
The individually wrapped coils give stronger support and better contouring than old‑style interconnected springs, which helps hold spinal alignment for back and side sleepers. Gel‑infused memory foam on top is there to improve airflow, while a breathable knit cover helps move heat away from the body for people who sleep warm. Motion isolation is a key feature: pocket coils compress under one person without rippling across the entire surface, so couples and light sleepers feel less movement from a partner’s turning or late‑night bathroom trips. The mattress is made without fiberglass, formaldehyde, or certain heavy metals and phthalates, which suits households with kids, pets, or sensitive sleepers who care about cleaner materials. It arrives compressed in a box for easier delivery; you place it on a platform bed, slatted frame, box spring, or adjustable base, cut the plastic, and let it expand for a day or two before use.
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Reviewed in the United States on February 24, 2026 by peter
I set up this 12-inch Twin XL mattress earlier this week, and it expanded fully within a day after unboxing. The hybrid design gives a nice balance between firmness and cushioning. The top gel memory foam layer feels comfortable without sinking too deeply, while the coil support underneath keeps it stable. When lying down, it supports the back evenly and doesn’t feel too soft. Edge support is decent for a Twin XL size, and sitting on the side doesn’t cause major collapse. Motion transfer is fairly minimal, which is helpful. It has a slight new-mattress smell at first, but it faded after airing out. So far it feels supportive and comfortable for everyday sleep.
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Reviewed in the United States on March 3, 2026 by Joe Hunter
We replaced our old queen mattress in the guest room first, but after two nights I ended up moving in there myself. The mattress expanded fully by the next day and reached its height without any weird smell, which I appreciated. The feel is a nice balance — soft on top but supportive underneath. I’m mostly a side sleeper with occasional lower back soreness, and this one keeps my hips and shoulders from sinking too far. My spouse moves around a lot at night, and the motion isolation is noticeable. I don’t feel the turning and getting up like I used to. Edge support is stronger than expected too. I can sit on the side to put on socks or help the kids in the morning and it doesn’t collapse. The surface stays cooler than our previous foam mattress, even with a thicker sheet set. Setup was simple, comfort was immediate, and sleep has been more steady since switching to it. Good choice for a main bedroom upgrade.
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Reviewed in the United States on February 13, 2026 by Amazon Viner
This mattress expanded fully after opening and didn’t have much smell. The surface feels soft on top but still supportive underneath, so it doesn’t sink too deeply. Sleeping on it feels balanced and it helps reduce pressure on the back and shoulders. Turning over at night doesn’t disturb the other side much, which is nice for shared beds. The edges also feel stable when sitting or getting up. It stays fairly cool compared to older foam mattresses and feels comfortable through the night. A solid mattress that makes sleep more comfortable without feeling too firm or too soft.
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Reviewed in the United States on February 27, 2026 by Jasper Lam