Sweetnight CoolNest 16 inch King Mattress, Cooling Memory Foam Mattress | Cool Night Sleep, 5-Zone Ergo Support for Pressure Relief, Enhanced Breathability, Medium Feel, CertiPUR-US Certified
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Availability:
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within 30 days
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Color: Grey & Blue
Size: King (U.S. Standard)
Set name: 16 Inch
Features
- CoolNest System for a Cooler Night - The CoolNest 16 inch king 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 size 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 16 inch cooling 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 Mattress in a Box - The Sweetnight CoolNest gel-infused memory foam mattress features CertiPUR-US certified foams and certified cover, which provides a comfortable sleep environment. The 16 inch memory foam king 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 16"Th
Item Weight: 97.7 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 16"Th
Item Weight: 97.7 pounds
Item Thickness: 16 inches
Item Depth: 16 inches
Item Dimensions: 80 x 76 x 16 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
Brand Name: Sweetnight
Model Name: SN-M01518
Product Benefits: Improves Sleep, Posture Support, Pressure Relief, Reduces Toss & Turn
Model Number: SN16KGYMMPRO23
Mattress Type: Standard Mattress
Global Trade Identification Number: 73
Manufacturer: PT Prestova Home Living Indonesia
Unit Count: 1 Count
Age Range Description: Adult
Item Type Name: Bed Mattress Conventional
Manufacturer Part Number: SN16KGYMMPRO23
Set Name: 16 Inch
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
within 30 days
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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Top Amazon Reviews
Color: Grey & Blue
Size: King (U.S. Standard)
Set name: 14 Inch
This is the king of comfort and luxury, I sleep like a baby, it is so supportive and barely transfers any movement. The mattress arrived quickly and was easy to unbox and get setup. It is well made, and high quality. The cover is soft and It’s amazingly cool to the touch, even in the summer heat.
Reviewed in the United States on July 19, 2026 by Jennifer Vellom
Color: Grey & Blue
Size: Queen (U.S. Standard)
Set name: 14 Inch
I was a bit skeptical about a bed-in-a-box at first, but this thing blew my mind. It is easy to open and expanded perfectly very quickly with zero weird chemical smells. The cooling technology is the real deal—I used to wake up sweating like crazy, but this keeps me perfectly chill all night. The 14-inch thickness gives it that premium, luxury hotel feel, and the 5-zone support hits all the right pressure points. My lower back pain is completely gone since day one. I’m honestly considering buying another one for the guest room. If you are on the fence and don't want to waste money on overpriced brands, just get this one. Absolutely worth every single penny. Zero regrets.
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Reviewed in the United States on July 4, 2026 by Ling Sun
Color: Grey & Blue
Size: Queen (U.S. Standard)
Set name: 14 Inch
On the day the mattress arrived, the transport personnel came to my store very thoughtfully to ask where to place it, and I asked them to move it directly to my husband's car He provides attentive service This helps us avoid a lot of trouble That night, my husband and I worked together to lift it upstairs Open the packaging box It rapidly expands Completely odorless Although we haven't had it for long, so far it feels like a great mattress. It makes me sleep soundly without any discomfort Both soft and supportive. The cost-effectiveness ratio is very high My husband and I both like this mattress, and my son also likes to sleep in my room They say our mattress is more comfortable than the one they sleep on I'm really happy that I chose this mattress It satisfies me and my family very much
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Reviewed in the United States on July 12, 2026 by Customer
Color: Grey & Blue
Size: Queen (U.S. Standard)
Set name: 14 Inch
I honestly didn't expect to get such a high-quality, thick mattress for such an affordable price! My original plan was just to buy something within the budget for our guest room. When it arrived, it expanded really quickly, literally within just a day, but it initially felt quite soft, and I didn't think it was going to be firm at all. However, by the second and third day when I went to put the sheets on, I realized it had gotten significantly firmer than when it first unfolded. The comfort level is amazing, and it provides incredibly good support, far exceeding my expectations. It is incredibly comfortable to sleep on. The cooling feature is also fantastic, making it a perfect choice for summer use. I really like the top fabric’s silky texture. I originally only intended to keep this in the guest room, but it is so good that I'm now seriously considering buying a second one for my own bedroom. Will recommend it to my family!
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Reviewed in the United States on July 7, 2026 by Arthur H
Color: Grey & Blue
Size: King (U.S. Standard)
Set name: 14 Inch
I’m very happy with this mattress. It expanded quickly after opening and reached its full size within a minute. The cover looks nice and feels soft, and the mattress provides great support while still being comfortable. It’s firm enough to support my body without feeling too hard. There was almost no odor when I unpacked it. Overall, the quality exceeded my expectations, especially for the price. I would definitely recommend it.
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Reviewed in the United States on July 14, 2026 by Wenjie Chen
Color: Grey & Blue
Size: King (U.S. Standard)
Set name: 14 Inch
I got this mattress about 10 days ago and delayed changing it because I’ve had my other mattress for so long and worried I would wake up with my back hurting or stiff from the change BUT I had to yesterday and last night was the absolute best night sleep I’ve had in a very long time!! The first pic was minutes after I had opened it and put it on my bed- it started getting normal shape quick. The second pic is this morning- less than 24 hours after opening it (I opened it late yesterday afternoon. It has been cool to the touch every time I’ve touched it- I slept cool all night and it still felt cool when I woke up this morning. I slept so good last night I didn’t move at all- I don’t move much in my sleep usually anyway but I do usually wake up with my back hurting from not moving much- I was shocked that when I did wake up this morning, I had zero discomfort, and I actually slept an hour later than I usually do. My 120 pound English labrador sleeps in the bed with me and he will wake me up moving around, but I never felt him move last night. I really think he slept better too. The mattress is soft but firm and does relieve the pressure points- it is the perfect mix of firm yet soft and the cooling is just a bonus. If you’re like me going back-and-forth, not sure this is a great mattress- trust me it is amazing! I can’t wait to see how much it improves over the next day or two like the instructions said it would be fully inflated within 72 hours. I am so happy with my purchase!
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Reviewed in the United States on July 19, 2026 by Jennifer Carpenter
Color: Grey & Blue
Size: King (U.S. Standard)
Set name: 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)
Set name: 14 Inch
I’ve been sleeping on the Sweetnight CoolNest 14” King mattress for a bit now, and honestly, it’s been great. Unpacking it was super easy, it came compressed, and once I cut the plastic, it puffed up way faster than I expected. The cooling part is real too. It doesn’t trap heat like a lot of memory foam beds, so I’m not waking up sweaty anymore. It has a nice medium feel, really comfy, and it does a good job with pressure points. I also barely feel movement when someone else gets in or out of bed, which is a huge plus. If I had to nitpick, the edge support could be a little stronger, but overall it’s been a solid, comfortable mattress and definitely worth it if you sleep hot.
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Reviewed in the United States on June 27, 2026 by IO