Sweetnight CoolNest 12 Inch Full Size Mattress, Cooling Gel Memory Foam Full Mattress for Cool Night Sleep, 5-Zone Ergo Support for Pressure Relief, Medium, CertiPUR-US Certified
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Availability:
In Stock.
Arrives
Sunday, Aug 31
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Color: Grey & Blue
Size: Full
Style: 12 Inch
Features
- CoolNest System for a Cooler Night - The CoolNest 12 inch full size mattress features our innovative CoolNest System, combining PCMflux high-resilience foam with gel-infused memory foam to deliver a dual cooling technology. This advanced system helps actively regulate temperature throughout the night, reducing overheating and night sweats for hot sleepers.
- 5-Zone Ergo Support for Pressure Relief - Engineered with a 5-zone design, this memory foam full size mattress integrates support foam and comfort bars to target pressure points from head to toe. It helps redistribute pressure while maintaining stability, promoting proper spinal alignment and back pain relief. Endorsed by the American Chiropractic Association (ACA), it's designed for restorative sleep.
- Motion Isolation for Undisturbed Sleep - Constructed with multiple layers of memory foam, the CoolNest 12 inch full bed mattress has the advantage of foam on absorbing noise and vibrations. Additionaly, These layers work synergistically to minimize motion transfer, so you're less likely to be disturbed whether your partner shifts positions or gets up during the night. Wake up feeling more refreshed.
- Enhanced Breathability for Ultimate Comfort - The CoolNest cover incorporates 3D-woven technology, featuring an ventilation pores design that improving breathability by 35% compared to standard fabrics. Also, the PCMflux high-resilience foam with hollow structure promotes 3X airflow. Thereby these help to wick away moisture and adapt to body temperature for a cooler, drier sleep surface.
- Healthy Sleep & Full Size Mattress in a Box - The Sweetnight CoolNest gel memory foam mattress features CertiPUR-US certified foams and OEKO-TEX certified cover, which provides a safer and healthier sleep environment. The 12 inch mattress full size is compressed in a box for easy setup. Additionally, it comes with a 10-year protection. Please allow the sweetnight mattress to fully expand for 72 hours.
Brand: Sweetnight
Size: Full
Product Dimensions: 75"L x 54"W x 12"Th
Top Style: Tight Top
Cover Material: Polyester
Number of Layers: 6
Fill Material: Gel Memory Foam, High Density Foam, Memory Foam
Special Feature: Breathable, Low Motion Transfer, Pressure Relief, Temperature Regulating
Color: Grey & Blue
Model Name: SN-M01518
Item Weight: 63.4 pounds
Product Dimensions: 75 x 54 x 12 inches
Item model number: SN12FGYMMPRO23
Date First Available: April 11, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Aug 31
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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Top Amazon Reviews
Color: Grey & Blue
Size: King (U.S. Standard)
Style: 14 Inch
From the first night, I noticed a huge difference in comfort and sleep quality. The cooling gel memory foam does exactly what it promises — keeps you cool throughout the night without any overheating. It’s perfect for hot sleepers like me. The mattress is the ideal balance between soft and supportive. You sink in just enough to feel cradled, but it still gives you the firmness you need to wake up without any aches or stiffness. The 14-inch height also gives it a luxurious, high-end feel that makes the bed look great. Unboxing was easy, and there was no strong odor like you get with some foam mattresses. It expanded quickly and was ready to sleep on the same day. Overall, I highly recommend this mattress if you’re looking for a cooler, more restful night’s sleep with king-size comfort. Definitely worth every penny!
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Reviewed in the United States on August 5, 2025 by Nadia Wong Nadia Wong
Color: Grey & Blue
Size: King (U.S. Standard)
Style: 14 Inch
From the moment it was unboxed, this mattress impressed me. I let it expand fully for the recommended time, and it fluffed up beautifully. The cooling gel layer actually works—I no longer wake up feeling overheated, even on warmer nights. The 5-zone support is a game changer, cradling the shoulders and hips while keeping the back aligned, which makes a big difference in how refreshed I feel in the morning. The medium firmness strikes that perfect balance between soft comfort and sturdy support. It feels well-made, with no sagging or odd lumps after nights of use. If you want a king-size bed that feels luxurious without a luxury price tag, this one delivers both comfort and quality in every inch.
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Reviewed in the United States on August 12, 2025 by Angie Sutil
Color: Grey & Blue
Size: Queen (U.S. Standard)
Style: 14 Inch
I've been needing a new mattress for a while and done a lot of research. This one seemed to be the best fit for me and my budget. I'm over 50 and have joint issues so relieving pressure points is a big deal. The weight makes it a bit awkward to move but it can be set up with one person. Got it on the bed and unwrapped and left it to expand. After 16hrs it felt good so I didn't worry about giving it the full 72 hrs time. Best. Night. Sleep. (since I can't remember when) My joints didn't ache and I almost slept through the night. I slept so well I missed my alarm and was a little rushed getting ready for work. It's well made and supports where needed and is "soft " and flexible as well. I would definitely recommend this mattress.
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Reviewed in the United States on August 14, 2025 by Kindle Customer
Color: Grey & Blue
Size: Full
Style: 12 Inch
I read a lot of the reviews and some were concerned that the corners did not expand properly. But the one that mattered the most I think was the one who wrote he tried to sleep on it before the 72 hours after opening. I waited the full 72 hours and have been pleased ever since. It’s very comfortable and the cooling top works very well. This may not be the best mattress out there, but because of the way I’m using and the the price point this is the best mattress for me. The size was great for me. I did not need anything bigger than full. I didn’t notice a smell like someone said they did. I never had that issue. The firmness is exactly what I expected.
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Reviewed in the United States on August 2, 2025 by F. Martin
Color: Grey & Blue
Size: Full
Style: 14 Inch
I’m honestly blown away by how comfortable this mattress is. From the first night, I noticed a huge difference in how well I slept. It offers just the right amount of support without feeling too firm, and it contours to the body in a way that feels super relaxing. One of my favorite things is how cool it sleeps. The material is cool to the touch and does a great job of regulating temperature throughout the night, even during warmer weather. Setup was simple and it expanded quickly with no strong odors. For the price and quality, this mattress exceeded my expectations.
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Reviewed in the United States on August 4, 2025 by Brandon
Color: Grey & Blue
Size: King (U.S. Standard)
Style: 14 Inch
Setup was too easy just unbox it, let it expand (wait for full 72 hours), and it was ready to go. No funky smell, no issues with uneven corners. I like the idea of these box mattresses, easy to carry and transport. The cooling feature is COOL. I usually wake up sweating in the middle of the night, but this mattress keeps you cool and dry, even in Texas heat. The memory soft at first touch, but it offers really solid support once you lie down — especially around pressure points like hips and shoulders. Specially for backpain and stiff muscle this mattress provides good support. Overall, it feels like a luxury mattress without the luxury price tag.
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Reviewed in the United States on August 6, 2025 by Insaan
Color: Grey & Blue
Size: Queen (U.S. Standard)
Style: 14 Inch
Great quality for the price. product as described, thick, medium firmness and supportive. Biggest challenge so far, keeping the sheet on the bed, as it just keeps slipping off.
Reviewed in the United States on July 2, 2025 by Michelle Melo
Color: Grey & Blue
Size: Full
Style: 12 Inch
I've been sleeping on the Sweetnight CoolNest mattress lately, and it's exceeded my expectations. The medium-firm feel is just right—not too firm, not too soft. The cooling gel memory foam lives up to its name, helping regulate body temperature throughout the night. It packs well, expands quickly, and doesn't have a strong chemical smell. For the price, it's a great value. I highly recommend it to anyone who needs a better night's sleep and a cooler night's rest!
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Reviewed in the United States on August 6, 2025 by YOYO YOYO