Sweetnight CoolNest 14 Inch King Size Mattress, Cooling King Memory Foam Mattress for Cool Night Sleep, 5-Zone Ergo Support for Pressure Relief, Medium, CertiPUR-US Certified
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Availability:
In Stock.
Arrives
Friday, Jul 24
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Color: Grey & Blue
Size: King (U.S. Standard)
Style: 14 Inch
Features
- CoolNest System for a Cooler Night - The CoolNest 14-inch king size mattress features our innovative CoolNest System, combining PCM high-resilience foam with gel-infused memory foam for layered cooling comfort. This advanced system helps dissipate heat and maintain a cooler surface throughout the night, creating a cooler and more comfortable sleep environment for hot sleepers.
- 5-Zone Support for Pressure Relief - Engineered with a 5-zone design, this king foam mattress integrates support foam and comfort foam to help cushion pressure areas from head to toe. It helps redistribute pressure while maintaining stability and balanced support for enhanced comfort. Recognized by the American Chiropractic Association (ACA), it's designed to promote a more restful sleep experience.
- Motion Isolation for Undisturbed Sleep - Constructed with multiple layers of memory foam, the CoolNest 14-inch king memory foam mattress helps absorb motion and reduce vibrations. Additionally, 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 Cooler Comfort - The CoolNest cover incorporates 3D-woven technology, featuring a ventilation pore design that improves breathability by 35% compared to standard fabrics. Also, the PCM high-resilience foam with a hollow structure promotes 3X airflow. Together, these features help to wick away moisture and adapt to body temperature for a cooler, drier sleep surface.
- Restful Sleep & King Size Mattress in a Box - The Sweetnight CoolNest gel-infused memory foam mattress features CertiPUR-US certified foams and an certified cover, which provides a comfortable sleep environment. The 14-inch king size mattress 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: King (U.S. Standard)
Product Dimensions: 80"L x 76"W x 14"Th
Item Weight: 86.6 Pounds
Item Firmness Description: Medium
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
Item Firmness Description: Medium
Number of Layers: 6
Additional Features: Breathable, Low Motion Transfer, Pressure Relief, Temperature Regulating
Construction Type: Memory Foam
Size: King (U.S. Standard)
Item Dimensions L x W x Thickness: 80"L x 76"W x 14"Th
Item Weight: 86.6 Pounds
Item Dimensions: 80 x 76 x 14 inches
Item Depth: 14 inches
Cover Material: Polyester
Fill Material: Gel Memory Foam, High Density Foam, Memory Foam
Mattress Comfort Layer Material: Comfort Foam
Material Type: Gel Foam, Memory Foam
top-style: Tight Top
Color: Grey & Blue
Style Name: 14 Inch
Brand Name: Sweetnight
Model Name: SN-M01518
Product Benefits: Improves Sleep, Posture Support, Pressure Relief, Reduces Toss & Turn
Model Number: SN14KGYMMPRO23
Mattress Type: Standard Mattress
Global Trade Identification Number: 42
Manufacturer: PT Prestova Home Living Indonesia
Set Name: King 14 Inch
Manufacturer Part Number: SN14KGYMMPRO23
Unit Count: 1.0 Count
Age Range Description: Adult
Item Type Name: Bed Mattress Conventional
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jul 24
Yes, absolutely! You may return this product for a full refund within 90 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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Similar Products
Top Amazon Reviews
Color: Grey & Blue
Size: Queen (U.S. Standard)
Style: 14 Inch
I have classical Ehlers Danlos Syndrome (cEDS), so I’ve had pretty severe joint pain my entire life. Our old mattress was causing me to toss and turn in my sleep, which lead to sprained knees, elbows, and shoulders. I have tried all the pillows and special orthopedic supports with no luck. I bought this mattress in hopes it would provide better support and keep me from injuring myself, and wow, I’m impressed. My pain is significantly improved, no sprained joints, no headaches. Additionally, I didn’t wake up sweaty, and my husband didn’t wake me up when he moved around in the morning. What I wish was in a review: 1. It didn’t take long to expand. We were able to use it after 4-6 hours, then it gradually softened. You won’t harm it by sleeping on it early, it’ll just be slightly more firm at first. 2. I don’t know what the negative reviews are talking about, it’s not too soft or too firm. It’s equal to the mattresses at stores here. I’m assuming they maybe got the wrong order? 3. Very mild smell. Foam sometimes has a terrible chemical smell, this was very mild and manageable. 4. This thing is packed TIGHT and folded in the middle. I was alarmed when I saw it before opening— don’t be. It’s squished down smaller than others are. My package only measured 18 x 32 lol. It’s okay, I promise. 5. If you’re used to a spring mattress, this is going to feel weird to you. It’s silent, doesn’t move, and relieves all of your joints. Give it a fair chance, because you won’t be used to how your body feels without distractions (like the sound of springs). You may find it hard to sleep at first, because you’ll be more aware of your own body. 6. Lastly, don’t be alarmed by the reviews showing wrinkles on the mattress. It’s literally just the sheet cover part. No different than how your fitted sheet gets wrinkled lol. It’s down the middle because it’s a tight fitted cover and it’s folded in half in the box, so it creases and wrinkles the half that’s rolled up inside (if that makes sense). The mattress itself is fine lol, and the cover is so silky smooth that the wrinkles/creases flatten the second you get on it. Will this mattress last a lifetime? Of course not, it’s a mattress shipped in a box lol. But it’s absolutely worth this price. I will update this review if I ever need to replace it with how long it lasted!
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Reviewed in the United States on April 17, 2026 by Crystal
Color: Grey & Blue
Size: King (U.S. Standard)
Style: 14 Inch
This Sweetnight mattress has been a total game-changer for my sleep! I’ve always struggled with memory foam mattresses that sleep hot, but the cooling layer on this one works so well — I stay comfortable all night, even in warmer weather. The medium feel is just right: supportive enough for my back and shoulders, but still soft enough to sink into comfortably. The 5-zone support makes a noticeable difference in how my body feels when I wake up, no more stiffness or pressure points. Setup was super easy, and it expanded fully within a day. I also love that it’s CertiPUR-US certified, so I feel good about the quality and safety. If you’re looking for a cooling, supportive mattress at a great price, this one is definitely worth it!
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Reviewed in the United States on April 26, 2026 Reviewed in the United States on April 26, 2026 by Liangping Lin
Color: Grey & Blue
Size: King (U.S. Standard)
Style: 14 Inch
In a word- Yes. It’s very comfortable- firm yet supple without being hard, while supportive in a slightly form-fitting way. The mattress was delivered within a few days. It’s easy to unbox and set up- the mattress expands very quickly. There was no odor. Be careful opening the shipping box and cutting plastic wrap of mattress. From the first night, I noticed the difference it’s very comfortable, provides great support, and doesn’t sink. The size is perfect,I’ve been sleeping much better since I got it. It doesn’t get hot and adapts very well to the body. if you’re looking for something comfortable, affordable, It also offers great value for the price compared to other mattresses on the market.I definitely recommend this mattress to anyone looking for comfort, quality, and affordability.
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Reviewed in the United States on April 11, 2026 Reviewed in the United States on April 11, 2026 by Sunlion
Color: Grey & Blue
Size: Queen (U.S. Standard)
Style: 14 Inch
I’ve been sleeping on this mattress for about 5–6 days now, and I really love it! I chose the medium-firm option, and it provides great support—not too soft, not too firm, just the right balance. What impressed me the most is the motion isolation—when you move or turn over, your partner can barely feel it, which is amazing for couples. The overall quality feels solid and comfortable. Definitely a great value mattress, highly recommended!
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Reviewed in the United States on April 25, 2026 Reviewed in the United States on April 25, 2026 by Lucas
Color: Grey & Blue
Size: Queen (U.S. Standard)
Style: 14 Inch
The Sweetnight CoolNest 14” Queen Mattress has been a really comfortable upgrade. The cooling memory foam does a great job regulating temperature—I don’t wake up feeling overheated anymore, which was a big issue with my previous mattress. The 5-zone ergonomic support provides a nice balance of comfort and support, especially for my back and shoulders. It feels medium-firm, which works well whether I’m sleeping on my side or back. I also appreciate that it’s CertiPUR-US certified, so there’s no strong chemical smell and it feels safe to use. Setup was easy—just unbox and let it expand. Overall, it’s a comfortable, supportive, and cooling mattress at a great price point. Highly recommend for anyone looking for better sleep without breaking the bank!
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Reviewed in the United States on March 25, 2026 Reviewed in the United States on March 25, 2026 by Jerry
Color: Grey & Blue
Size: Queen (U.S. Standard)
Style: 14 Inch
We’re a couple and just got this mattress, and it was ready much faster than expected—pretty much fully expanded and usable after about a day, which was a nice surprise. After the first night, we’re already really impressed. The cooling is noticeable right away—it doesn’t trap heat like our old mattress, and we both slept more comfortably without waking up sweaty. The support feels well-balanced too, not too soft or too firm. I usually have some lower back discomfort, and even after one night I could feel a difference—it felt more aligned and less pressure in the morning. It’s also very easy to set up and use. Taking it out of the box was straightforward, and we didn’t have to wait days for it to be ready, which made the whole experience much smoother. Motion isolation works well too. One of us moves a lot during the night, but the other barely notices. Even our cat jumping on and off the bed didn’t really disturb our sleep. Overall, it already feels like a big upgrade after just one night. Comfortable, supportive, cool, and super convenient—very happy with it so far.
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Reviewed in the United States on April 4, 2026 Reviewed in the United States on April 4, 2026 by Roxanne Woo
Color: Grey & Blue
Size: King (U.S. Standard)
Style: 12 Inch
I’ve been using the Sweetnight CoolNest 12” King Mattress for a bit now, and overall I’m impressed. The thickness is just right, the medium firmness feels accurate, and it gives excellent support without sagging. I wake up without pressure points, which is a big win. The cooling performance is genuinely good — it stays comfortable through the night. For the price, the value is honestly hard to beat, and delivery was smooth and on time. A couple of drawbacks: the top surface is not quilted, so it feels very flat compared to mattresses with a cushioned top layer. Also, the cover isn’t cotton, so it has a slightly synthetic/artificial feel. Not a dealbreaker, but worth noting. Overall, a great value mattress with solid support and cooling, just not the plushest surface finish.
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Reviewed in the United States on May 29, 2026 by NRI Desi Bong
Color: Grey & Blue
Size: King (U.S. Standard)
Style: 14 Inch
Really happy with this mattress so far. It’s very comfortable and supportive without being too soft or too firm. I noticed a difference from the first night and have been sleeping much better since getting it. It also stays cool at night and doesn’t sink in like some other mattresses. Delivery was fast, setup was easy, and the mattress expanded quickly after opening. There was no strong smell either, which was a big plus. Overall, the quality feels great for the price, and it’s been a really good value. Definitely recommend if you’re looking for a comfortable and affordable mattress.
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Reviewed in the United States on May 8, 2026 by Marah