Search  for anything...
COOL GEL

Cool Gel 12 Inch King Mattress Memory Foam Medium Firm, King Size Memory Foam Mattress Cooling, Made in the USA, 12" Depth with Pressure Relief, CertiPUR-US Certified No Fiberglass, CoolGel Bed

  • Based on 57,336 reviews
Condition: New
Checking for the best price...
$388.00 Why this price?
Save $261.99 was $649.99

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

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.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by FoamSuite-Home
Arrives Thursday, Sep 25
Order within 22 hours and 30 minutes
Available payment plans shown during checkout

Recently Viewed

Size: King


Style: 12-inch


Features

  • Ergonomic Support & Comfort: Designed with a high-density foam base & breathable comfort foam layer, this memory foam mattress adapts to your body for superior support. It evenly distributes weight, reduces pressure points, and enhances relaxation.
  • Pressure-Relieving Medium Firm Support: This medium firm king memory foam mattress offers high-density support that cradles pressure points, promotes spinal alignment, and reduces discomfort, making it ideal for back, side, and stomach sleepers.
  • Breathable Open-Cell Design for Cooling: Features a ventilated open-cell structure that enhances airflow and heat dissipation. This king bed mattress ensures a cool and comfortable sleeping environment all night long, preventing overheating.
  • Proudly Made in the USA: Our king mattress bed is expertly crafted with eco-friendly, CertiPUR-US certified materials - free from harmful chemicals or fiberglass. Enjoy premium comfort, safer sleep, and peace of mind night after night.
  • CertiPUR-US Certified: Fiberglass-free & certified for durability, emissions, and performance. Our luxury medium firm mattress king meets strict standards for emissions, durability, & performance, offering peace of mind with every night's sleep.
  • Available in Multiple Sizes: Cool Gel Memory Foam Mattress King dimensions: 80" x 76" x 12-Inch. Our Memory Foam Bed Mattresses are available in California King, King Mattress, Queen, Full Mattress, Twin XL, & Twin Mattress as well as 8, 10, 12, & 14-inch Depths.

Description

Experience ultimate comfort with the best Cool Gel 12-Inch Medium Firm King Memory Foam Mattress in a box, available on amazon in California King, King, Queen, Full, Twin, and Twin XL sizes. Our Memory foam mattress king features a luxurious high-density foam base & breathable comfort foam layer, this matress contours to your body’s shape while regulating temperature for a cooler, undisturbed sleep. This king cooling mattress features high-density memory foam which provides essential pressure relief, supporting proper spinal alignment and promoting a deeper, more restful night’s sleep. The breathable open-cell structure enhances airflow, keeping you cool and refreshed. This fiberglass-free memory foam king mattress meets CertiPUR-US standards for durability, performance, and emissions, ensuring a safe and healthy sleep environment. Simple to set up - just unbox and let it expand naturally. Available Callifornia King Bed Mattress, King Bed Mattresses, Bed Queen Size Mattress, Full Mattress, Twin Bed Mattress, and Twin XL. Colchones de espuma queen. cali king, king foam mattress, full size, twin, and twin xl. CoolGel Mattress Memory Foam for the entire family, from twin size to cali king size.

Brand: COOL GEL


Size: King


Product Dimensions: 80"L x 76"W x 12"Th


Top Style: Tight Top


Cover Material: Polyester


Number of Layers: 3


Fill Material: foam


Weight Limit: 1000 Pounds


Special Feature: Hypoallergenic


Color: White


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 91.8 pounds


Manufacturer: Classic Brands


Item model number: 410079-1160


Is Discontinued By Manufacturer: No


Date First Available: August 7, 2014


Age Range Description: Adult


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Sep 25

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • If you prefer a mattress that's not "firm"...
Size: King Style: 14-inch
Review Image by Bwater Evan Bwater Evan
For years we had been sleeping on an old inner spring mattress with an inexpensive 4" foam topper. It was VERY SOFT, so much so that getting out of bed was sometimes an issue. Plus I often woke up with shoulder or neck pain. FYI, I'm a side sleeper. And lately, my sleeping's just been lousy. I expect Covid-related anxiety is party to blame. Regardless I decided I wanted a new mattress. I decided on a bed in a box. I got one for both of my kids over the years and they seemed happy. Plus, there are very well reviewed products out there for way less than traditional beds. Lastly, return policies often seemed too good to be true (see more on this below). After spend days reading hundreds of reviews and watching videos, I opted for a Tuft & Needle Mint. It cost about $1K. Easy ordering, arrived promptly, set up easily, and looked great. It was rated "firm." Well, my wife HATED it. Truth be told, she didn't give it a fair try. She kind of said she wouldn't like it before it arrived, said she didn't like it after night 1, and after night 2 said she was up all night with back pain. FWIW, this mattress should have relieved her back pain, not added to it, based on firmness and the fact that she's a back sleeper. Didn't matter. Her mind was made up. It had to go. So I called T&N on day three and they were FANTASTIC. Refunded my purchase price IMMEDIATELY and said I should give it to a local charity or, failing that, give it to a friend, family member, or neighbor in need. The return policy that I thought "too good to be true" turned out to be 100% true. Good on them! I gave it to a family in a neighboring town that lost all of their possessions to a house fire. I ordered the 2.0 via Amazon because it was the more "plush" of the options and because of the literally thousands of positive reviews. Oh, the fact that the price was less than half of the T&N didn't hurt. It arrived in about 8-9 days (my only complaint). Very large box that I once again had to navigate to the second floor. Popped it open and enjoyed watching the inflating process (again). After figuring out which side was front and back we placed it in place and let it "breath" for a couple of hours. With chemical smell to keep me off it, I put a cover and sheet on it and slept on it last night. It's definitely on the plush side. I wouldn't want it any softer. But I actually found it more comfy than the 2x more expensive mattress that preceded it. "They" say soft is good for side and stomach sleepers (which I am) and they appeared correct. I only had one night on it but I'm sure it'll be fine for me. My wife joins me on it tonight and we'll have to see her reaction. Should she not like it I'll just get her a 2" topper for her side to make it softer. You can't see the actual mattress so I can't comment on its looks or fit and finish. The cover isn't at taught as the T&N's cover and the materials not as rich feeling, but it doesn't feel cheap. As a bonus, it come with two "bonus" memory foam pillows and though it did smell a little when I woke up my head was on one of them and not one of my "old" pillows. I can't speak to its return policy and hope I don't have to. But I am comfortable saying (pun intended) that this is a nice, inexpensive option for someone who likes a softer mattress. ... show more
Reviewed in the United States on July 31, 2020 by Bwater Evan Bwater Evan
    • Great value and comfort.
Size: Queen Style: 14-inch
The ultimate comfort at a great price. Firm, not hard, no more waking up at night and my old bones and joints are very happy. No odor as some reviews noted. Love this mattress, great value when comparing other more expensive ones.
Reviewed in the United States on August 27, 2025 by Whereitsat
    • Best Sleep
Size: Short Queen Style: 8-inch
My husband and I had the best night sleep !! I am amazed at the quality and comfort. I got lucky and had a sale price and jumped on it. This mattress was money well spent. Thank you ❣
Reviewed in the United States on September 12, 2025 by Apple, C
    • different sizes have different firmnesses
Size: Twin Style: 12-inch
so, ive purchased both the twin 12 inch (labelled as "mattress" in size selection) and full size 12 inch (labelled "12 inch" in size selection), and i personally find them both nice mattresses for sleeping on solo. everything was super easy to open and set up. i let 'em rise for 24 hours and there was no super strong warehouse smell (though if you pressed your face into it without a sheet you could still get a whiff of plastic for like...a week. this wasnt an issue for me though) the twin was PRETTY FIRM for a memory foam mattress. i liked it alot, there was no sinkage or pit that formed when more than one person sat on it. it is for this reason that, when i decided to size up to a full so i had more room to sleep with my partner, i bought the same brand thinking itd be the same firmness, especially considering (unless im a dunce and missed it...) i didnt see any options to choose a firmness or specifications on the item listing FOR firmness (i.e. all i had to go on were reviews, many of which mentioned the mattresses being pretty firm for memory foam) the full size i got was VERY SOFT. like, much much MUCH softer than the twin i had. im fine with this when im sleeping by myself- its not like theres NO support, its just not as nice for sleeping with another person next to you because it IS soft enough that a dip will form under the heavier person. im not the pickiest about beds and firmness and all that, i still like both of the ones i got, and theyre great for the price i got 'em for sure. was just a tad disappointing finding out that the firmnesses arent standard accross all sizes and (as far as i could tell) theres no specifications saying which are what firmness. i didnt expect either bed to be permanent for me, which is why i only spent 350 on a full sized mattress, so its not like im too beat up about it. by myself, the full is plenty comfy and i expect it to last the few years i need it to. its just worth mentioning that the firmness can be kinda... unpredictable i geuss? 🤷♂️ ... show more
Reviewed in the United States on July 12, 2024 by milo hebert

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...