Coolvie 12 Inch King Size Mattress, Firm Feel Fiberglass Free Hybrid Mattress for Extra Lumbar & Hip Support, Cooling Knit Fabric Cover- King Mattress in a Box, CertiPUR-US Certified-80x76x12 inch
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100-day refund / replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
20 left in stock
Arrives
Sep 16 – Sep 17
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Size: King
Style: 12 Inch Firm
Features
- High Quality FabricCoolvie king size mattress is made of anti pilling 3D knitted fabric, which can effectively reduce pilling caused by friction. The ventilation coil improves the breathability of the mattress, helping you get rid of night sweats, fall asleep at ideal temperatures. At the same time,this mattress is highly skin friendly, providing you with a long-lasting and comfortable experience.
- Pressure Relief and SupportCombined with high elastic response foam layer and high specification independent bagged spring, it can effectively support your body and provide spine alignment support, help your body stretch better, reduce pressure and tension, effectively reduce the number of turns, and promote deep sleep. It is an ideal choice for people who want comfort but need stable support.
- Suitable for Various Sleeping PositionsThe individually packaged spring design provides strong support for users, balanced comfort and support perfect for all sleeping styles. It also has motion isolation function to avoid being influenced by your partner's movements while sleeping.
- Easy InflationThe mattress is vacuum compressed and packaged in a box for easy handling,can be easily inflated within the stipulated time frame under normal room temperature conditions.Once received, simply open the package and wait for 48-72 hours for it to fully expand before use.
- CertiPUR US CertificationCoolvie mattress is made of safety foam certified by CertiPUR in the United States. People with sensitive skin can also choose it with confidence.
- 100-Night Home TrialYou will get 100 nights trial and 10 years support for this king bed mattress.Your satisfaction and peace of mind are our priority. If there are any issues with your mattress, our dedicated customer service team will be there to assist you.
Brand: Coolvie
Size: King
Product Dimensions: 80"L x 76"W x 12"Th
Top Style: Pillow Top
Cover Material: Knit Fabric
Number of Layers: 3
Fill Material: Hybrid
Special Feature: Vacuums
Color: White, Blue
Coil Type: Pocketed Coil
Product Dimensions: 80 x 76 x 12 inches
Item Weight: 90 pounds
Manufacturer: coolvie
Item model number: firm-12k
Date First Available: December 20, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sep 16 – Sep 17
Yes, absolutely! You may return this product for a full refund within 100 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: Twin
Style: 12 Inch Medium Firm
I bought the Coolvie 12-inch twin-size Hybrid Mattress a few months ago for my 13-year-old daughter, and so far, it has exceeded our expectations. It arrived quickly, although the box was a little heavy for me to carry upstairs by myself. The instructions for opening the box and unwrapping the plastic were clear, and it was satisfying to watch the mattress regain its shape in just a few minutes. The hybrid design, which combines the support of innerspring coils with three layers of premium foam, really sets this mattress apart. My daughter finds it very comfortable, with the foam providing just the right amount of softness while the innerspring coils give it a supportive feel. After several months, she still reports sleeping well and hasn't experienced any sagging or loss of comfort. For the price, this is a fantastic product. It offers the perfect balance between comfort and support, without breaking the bank. If you’re looking for a quality mattress that’s easy to set up, comfortable, and affordable, I would definitely recommend the Coolvie 12 Inch Twin Size Hybrid Mattress. It has made a noticeable difference in my daughter’s sleep quality, and we couldn’t be happier with the purchase.
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Reviewed in the United States on September 9, 2024 by Lpenguin
Size: Full
Style: 14 Inch Medium Firm
I’m extremely impressed with this mattress. It’s a perfect combination of soft and firm, and is perfectly comfortable. I was also frankly amazed at the fact that it came packaged in a vacuum roll, and then it literally sprang to life upon breaking the vacuum seal. It’s not just a foam mattress—there are wrapped metal coil springs internally, with all the benefits that arrangement offers. Of course, it’s off gassing a little bit in the beginning, so there’s a bit of a smell that’s already dissipating after a day. Overall, I’d say it represents impressive Chinese design, manufacturing and delivery technology. It’s as good or better than brand name mattresses costing twice as much or more; there’s just no way a US manufacturer could provide this quality at a similar price. I’ll report back if there are any durability issues, but I don’t expect any. 5+ stars and an extra “snap”! Way to go, Coolio!
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Reviewed in the United States on July 26, 2025 by N. Williams
Size: Twin
Style: 14 Inch Medium Firm
Excellent purchase, There was no smell at all, very pleasant sleeping, my pain in my back is much better , very durable! I love the mattress
Reviewed in the United States on August 25, 2025 by Amazon Customer
Size: King
Style: 12 Inch Medium Firm
In Spring 2024 I bought a well-reviewed, but lower cost, full sized mattress in a box from Amazon for my spare bedroom and was shocked in a good way when I was given a specific delivery time option and discovered that mattress was delivered and set up free of charge by Amazon (and there was an option to take away an old mattress and box spring at NO EXTRA CHARGE). I mistakenly thought that's how all mattresses were sold off Amazon only to later discover by trial and error that this option now exists for only selected, upper range quality mattresses that are specifically sold and shipped by Amazon. I am a big guy and weigh over 240 pounds, but find this model of Coolvie mattress to be very comfortable for me to sleep on as both a side and back sleeper and very supportive of my body weight. The other amazing thing is I can sit on the edge of this mattress without it collapsing. If you read the reviews of most other "mattresses in a box" (even the more expensive ones), you will hear customer reviews saying you will slide off the edges. I also took advantage of getting an Amazon Prime credit card with no annual fee that further reduced the cost of this mattress (in addition to the Black Friday price) by an extra $200. I am a happy camper after the first two weeks. Will update if my experience changes.
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Reviewed in the United States on December 7, 2024 by Jono
Size: Twin XL
Style: 14 Inch Medium Firm
This a review on the Coolvie 14in. Medium Firm XL Twin Mattress. I truly did the research on this mattress by reading all the reviews. Therefore I wanted to write a review that would hopefully be helpful and informative. I had 2 TwinXL Beautyrest 14in. Medium Plush Recharge Contenders that were over a $1000 each almost 10 years ago when we bought them. My husband and I have 2 twin xl mattresses because we have adjustable bed bases that make a King. My bed had deteriorated at a faster rate than my husband's because I have disabilities in my back and heart so I'm always home. When we went shopping for mattresses during Labor Day the prices floored us. Therefore I researched and took a chance on this mattress. We only bought one for me now and got the 14in Medium Firm. If all stays like it is we'll get the Medium Plush for my Husband. We ordered it during Prime Days and got a great price $264 but the regular price for this mattress is also very incredible fairly priced with the $50.00 normal coupon for the mattress of $329.99 is $280 which already is a Great Price so it'll end up less than $600 for a King. The Mattress arrived on a Sunday three (3) Days early. I was so happy when I got the text that it was coming early. My husband and I were careful. He took it out of the box and cut the saran wrap and it's easy to unwrap. Did not unroll. My husband then tore open the the vacuum sack with tool they provide then the decompressing starts. Wow that was so cool. We left it like that for 24 hours and after one day it was already at almost 14in. I periodically checked on it for the growth but it pretty much didn't grow much more after 48 hours. After around the 60 hours we took it to our bed and that night I slept on it. I think that has been the best night's and next day's sleep I've ever had🤣 I woke up the next morning and accidentally fell asleep again and woke up 3 hours later. I will update in a few months if needed, but right now I will give this bed 5 stars out of 5 stars. It is firm but soft. Works perfectly on an adjustable base which I was worried because read a review that said it didn't but knew it did because innerspring mattresses should work with adjustable bases and as you can see in the picture it does!😁btw no smell. Sides are not as Plush as my Beautysleep but I'm not sleeping on the side of my mattress so who cares.
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Reviewed in the United States on October 17, 2024 by jackie p jackie p
Size: California King
Style: 12 Inch Medium Firm
Bought a bed before this somewhere else used it less than a month kept bending in, so I decided for this mattress what a difference, less back pain, very thick with some give but its more on the firm side which I like
Reviewed in the United States on August 10, 2025 by Jay