14 Inch Firm Queen Memory Foam Mattress, Firm Queen Size Mattress with Cooling Tencel Cover, Bed in a Box for Cool Sleep and Back Pain Relief, CertiPUR-US Certified, Foam Made in USA
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Availability:
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Size: Queen (U.S. Standard)
Style: 14 inch
Pattern Name: Firm
Features
- Napsie TriCool Matrix: Our TriCool Tech combines a breathable Silky TENCEL Cover, Cooling AeroFusion Foam, and BraceSleeper Support Foam. This advanced matrix actively wicks heat and regulates temperature for all-night comfort, ideal for aching backs and hot sleepers.
- More Breathability: TENCEL fibers move moisture better than common fabrics, while the egg crate structure creates dedicated 3D airflow channels that actively circulate airworking together to prevent heat buildup and sweat accumulation for scientifically cooler sleep.
- Enhanced Pressure-Relief: The Cooling AeroFusion Foam cradles high-pressure areas like shoulders and hips more effectively than standard foams, paired with the spinal alignment maintained by the BraceSleeper Support Foam, reducing pressure points for sore backs.
- Eco-conscious and Certified Safe: This mattress features TENCEL fibers, known for their Plant-based properties. CertiPUR-US Certified foam provids a Child-Safe & Chemical-Free sleeping environment especially for the health-conscious sleepers.
- Queen Mattress in a Box: No Assembly, No Heavy Lifting. The queen size mattress is rolled, compressed and delivered straight to your door in a compact box for shipping. It is also compatible with most bed bases and frames.
Brand: NAPSIE
Size: Queen (U.S. Standard)
Product Dimensions: 80"L x 60"W x 14"Th
Item Weight: 79 Pounds
Item Firmness Description: Firm
Top Style: Tight Top
Cover Material: TENCEL Blend
Number of Layers: 3.0
Fill Material: Gel Memory Foam, High Density Foam, Memory Foam
Weight Limit: 750 Pounds
Product Dimensions: 80 x 60 x 14 inches
Item Weight: 79 pounds
Manufacturer: NAPSIE
Item model number: MNP140Q00FRT
Date First Available: October 21, 2025
Frequently asked questions
This product is currently out of stock. Please check back later for shipping info.
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
Size: King (U.S. Standard)
Style: 14 inch
Pattern Name: Firm
I have been sleeping on this mattress for a few days now and I am genuinely impressed. It is definitely firm, but not in a hard or uncomfortable way. It feels supportive and stable, which has made a noticeable difference in my lower back when I wake up. I used to feel stiff in the mornings, and that has improved a lot since switching to this bed. The memory foam contours just enough without making you feel stuck, and the cooling cover really does help regulate temperature. I tend to sleep warm and this mattress has stayed comfortable throughout the night. It expanded quickly after unboxing and had very little odor. Overall it feels high quality and well made. If you prefer a firm mattress and need solid support, this one is a great choice.
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Reviewed in the United States on February 12, 2026 by Michael Dahman Michael Dahman
Size: King (U.S. Standard)
Style: 14 inch
Pattern Name: Firm
This 14-inch firm king memory foam mattress is a game changer for my back pain. The firmness is just right—supportive without feeling hard—and it keeps my spine properly aligned all night. The cooling Tencel cover really works; I tend to sleep hot, but this mattress stays noticeably cooler and more breathable than others I’ve tried. It expanded quickly out of the box with no strong odor, which I appreciated, and the quality feels premium knowing the foam is CertiPUR-US certified and made in the USA. Overall, this mattress offers excellent comfort, support, and cooling, and I wake up feeling rested and pain-free.
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Reviewed in the United States on January 31, 2026 by Good quality Good quality
Size: Queen (U.S. Standard)
Style: 14 inch
Pattern Name: Firm
I’m very happy with this 14-inch firm queen memory foam mattress. It offers excellent support, especially for my back, and I wake up with much less stiffness and pain. The firmness is just right—not too hard, but very supportive. The cooling Tencel cover really helps regulate temperature, so I sleep comfortably without overheating. It arrived well-packaged and expanded quickly after opening. Overall, it feels high quality, supportive, and comfortable. Great value for anyone looking for a firm mattress with cooling features and back pain relief.
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Reviewed in the United States on January 22, 2026 by PINKU D. PINKU D.
Size: King (U.S. Standard)
Style: 14 inch
Pattern Name: Firm
Using this mattress for about two weeks. It expanded to full size by the next day and setup was easy. The feel is on the firmer side, which is what I wanted — it doesn’t sink too much but still feels comfortable on top. Works well for back and side sleeping. No strong odor after opening. So far it keeps its shape and feels like good value for a king size mattress.
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Reviewed in the United States on February 17, 2026 by Roman Roman
Size: Queen (U.S. Standard)
Style: 14 inch
Pattern Name: Firm
I’ve been sleeping on this mattress for a few weeks now and I’m really impressed with how supportive it feels without being rock hard. The cooling Tencel cover actually makes a difference - I don’t wake up overheating like I did with my old mattress. It expanded quickly out of the box, feels well-made, and has been a huge upgrade in overall sleep quality.
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Reviewed in the United States on February 1, 2026 by Smart Shopper Insights
Size: King (U.S. Standard)
Style: 14 inch
Pattern Name: Firm
Love this 14 Inch Firm King Mattress. It is King Memory Foam Mattress in a Box. It also comes with Cooling Tencel Cover. Looks very awesome. It is very Firm King Size Bed, that’s good for Back Pain Relief and Cool Sleep. Very heavy duty & durable. Easy setup without any mess. No noise & very elegant. Worth it. Must buy
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Reviewed in the United States on February 7, 2026 by MK
Size: Queen (U.S. Standard)
Style: 14 inch
Pattern Name: Firm
Great size and fits my queen bed perfectly. Firm but comfortable I’m sleeping well and waking up with less back discomfort. The cooling cover helps, and it expanded nicely after unboxing. Overall, solid mattress for the price and a comfortable night’s sleep. Was easy to put on bed.
Reviewed in the United States on February 15, 2026 by Sadaqat Ali
Size: King (U.S. Standard)
Style: 14 inch
Pattern Name: Firm
I absolutely love my Napsie mattress. From the very first night, I could tell the quality was excellent it feels supportive, well made, and super comfortable. Setup was easy, although I’ll admit I was a little concerned at first because it didn’t fully rise right away after unboxing. After a few hours, though, it expanded completely and reached its full height, so no issues there. I usually prefer a firm mattress, which is why I chose this one, and overall I’m very happy with the support. It provides great spinal alignment and feels sturdy without being cheap or stiff. That said, I do have slight regrets. I think this one might be just a bit too firm for my personal comfort. In hindsight, I probably should have gone with the medium firm option for a little extra pressure relief and softness. Still, the mattress is fantastic, and the quality, comfort, and support easily earn it high marks. If you love a very firm sleeping surface, this mattress is a great choice. For those who want a balance of comfort and support, I’d recommend considering the medium firm instead. The plus side is I won’t sink into it while giving back shots to my man
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Reviewed in the United States on January 31, 2026 by Amazon Customer Amazon Customer