Cocoon™ Chill Mattress (Twin/Twin XL/Full/Queen/King/Cal King) – Cocoon™ by Sealy
Our premium stretch-knit cover is infused with a proprietary phase change material, which absorbs and dissipates heat for a refreshing, cool to the touch surface.
THE CHILL MATTRESS
We’ve found that most sleepers prefer a mattress that’s fully supportive but not too firm, so we created a mattress with our Perfect Fit memory foam that adapts to your unique body size, shape and sleep position

INSIDE OUR MOST POPULAR MATTRESS
A premium memory foam mattress coupled with cooling technology designed to help keep your body cooler as you sleep.

1. COOLING COVER
Our premium stretch-knit cover is infused with a proprietary “Phase Change Material” that absorbs and dissipates heat.
2. PERFECT FIT MEMORY FOAM
Our high-quality memory foam adapts to your body size, shape and sleep position to ensure you get a great night’s sleep.
3. RESPONSIVE COMFORT FOAM
Cushioning support that reduces motion transfer and prevents that “sinking” feeling.
4. ESSENTIAL SUPPORT LAYERS
Engineered from heavier, more robust foam to be highly durable and resilient. We’ve tested it, and we know it bounces back every time.
Additional information
| Twin | 74.5" 38" 10" 39.5 lbs |
|---|---|
| Twin XL | 79.5" 38" 10" 42.1 lbs |
| Full | 74.5" 53" 10" 55.7 lbs |
| Queen | 79.5" 60" 10" 64.4 lbs |
| King | 79.5" 76" 10" 82.6 lbs |
| Cal King | 83.5" 72" 10" 82.5 lbs |





by SLEEPY
I thought I would prefer the firmer mattress but this one is perfect.
by DON
I was worried, the whole mattress in a box thing, but since I could easily return it I decided to give it a shot. Well, not only was it as comfortable as mattresses twice it’s price in the stores but I have not slept this good in years. I used to wake up with my blankets and sheets all over the place. I wake up now and my sheets and blankets don’t even have a winkle in them. Highly and I mean as highly as I can recommend this mattress in a box.
by Nancy
Who knew that a mattress in a box would be so wonderful?! I was in the market for a new bed and mattress. So I poured over so many sites, reviews, and even YouTube videos. I came across the Cocoon Chill mattress. I spent so much time reading all the reviews and the price was AMAZING so I took the plunge. I am so glad I did. First off I can’t keep my dog off my bed, she thinks it’s hers now. If you are on the fence about this mattress, just do it! It is so comfy and quiet, and I don’t ever want to get out of bed in the morning. Thank you Sealy!
by Corey
Cocoon is my new go to mattress! I own a king Purple and was nervous to try something new. I’m so glad I did. It is so comfy, I don’t wake up in pain, and it’s a fraction of the cost of my purple. 100% will put these in every room of my house.
by Jelly
I am a young adult now living in a new place. I decided on this bed because I’ve always had Sealy (thanks to my parents) so I didn’t try to fix what wasn’t broken; I looked up Sealy Queen beds and without fail, I was able to get a memory foam bed (specifically NON-gel). Even better on their annual deal of 30%. There is another deal during different days of the week that allow you to get a different discount (I believe with the pillow set) but the discount on getting the bed is much more worth it! Firm, doesn’t make you sweat, and is soft. Let it set a full day before sleeping idc what the box says. DONT USE A BOX CUTTER EITHER!
by Silva
We bought this for the guest room and now everyone wants one! It’s firm yet still squishy and soft; not sure how those two qualities co-exist but they do and it’s heaven. It was incredibly easy to order and set up. Would recommend to anyone.
by Amanda
This mattress is fabulous! Always get a great night’s sleep on it. The affordability is also a huge plus!! Customer service is a little lacking and that was surprising as I have purchased many mattresses from them and recommended them to many who have purchased.
by Bob
Had two name brand foam mattresses that were 10 years old—-the only thing wrong was they came in one level of softness….hard to reposition by pushing up on mattress surface as they were too soft….also when sitting up to watch tv it was hard to move to get in and sit where I wanted. This mattress has the right firmness for me to get in and out and reposition myself without feeling like I am on a marshmellow surface. At the time I bought the older ones you got one level of firmness and that was it….This is really step up in terms of choice and comfort.