100 Night Trial · Free Shipping · 10 year warranty

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What’s The Difference?

We've found that most sleepers prefer a mattress that's fully supportive but not too firm, so we created a Medium-Soft mattress - which is our most popular and feels like you're "in the bed". Some sleepers prefer our Extra Firm model for a more “on the bed” feeling.


Cocoon Medium-Soft

Perfect for those who like to be supported by their bed, but with a cushioned feel. Choose Medium-Soft if you prefer a plusher feel or are a side or multi-positional sleeper.

Cocoon Extra Firm

Great for those who require sturdy support from their bed, with a robust feel. Choose Extra Firm if you prefer a denser feel or are a back sleeper.

Everything you need for a cooler night's sleep

Our mattress, pillows, and sheets all work together to deliver complete cooling comfort, from head to toe.

1. Chill Mattress

1. Chill Mattress

Our premium stretch-knit cover is infused with a proprietary “Phase Change Material” that absorbs and dissipates heat for a refreshing, cool to the touch surface.

100 Night Risk-Free Trial + Hassle-Free Returns

2. DreamFit pillows

2. DreamFit pillows

The luxurious 100% Supima Cotton cover provides superior softness and cool breathability. The firm comfort and support of foam clusters on one side and the plush comfort and support of polyester fiber on the other side. Simply flip the pillow over for a distinctively different level of comfort and support.

If you order a king mattress, we’ll upgrade your pillows to king size for no additional cost.

FREE with Chill Mattress Purchase

3. DreamFit Sheets

3. DreamFit Sheets

You can’t go wrong with this 100% long-staple Combed Cotton Sheet Set, in single-ply authentic 260 thread count. Wonderfully soft on the skin, with lockstitch construction for durability. The fitted sheet features 360° 1-inch binding and corner straps for a snug fit.

King mattress purchases will be paired with king size pillowcases.

FREE with Chill Mattress Purchase

Mattress Specs

Size Length Width Height Weight
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

Additional Details

Country of Origin

Designed and built in the USA.

Shipping Info

Ships via UPS Ground from our manufacturing plant in Mississippi.

Shipping Costs

Free shipping and free returns in the USA.


10-year limited warranty.


The foams used in the Cocoon Chill mattress have been certified by the CertiPUR-US® program, a not-for-profit organization that conducts rigorous safety inspections prior to awarding certifications, thus ensuring the safety of our product.

Foundation or Box Spring

The Cocoon Chill mattress can be used on one of our custom designed Cocoon Foundations. You may also use a box spring, an adjustable base, a platform bed frame, or a slatted bed frame, as long as the slats are at least 2 inches wide and no more than 5 inches apart.

The Chill Mattress

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

Cocoon Numbered Layers (1).png
1. Cooling technology

Our premium stretch-knit cover is infused with a proprietary “Phase Change Material” that absorbs and dissipates heat for a refreshing, cool to the touch surface.

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. Personalized Comfort

Choose our Medium Soft layer for a cozier, more "in-the-bed" feel. Choose our Extra Firm layer for a sturdier, more "on-the-bed" feel.

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.

The Chill Experience —$697.50 (Queen) OR $58/month2 for 12 months1 · Learn More & Apply

Reviews Matter. We have great ones!

“No more tossing and turning, no more aches and pains, I LOVE my new (soft & cool) Cocoon mattress! Thanks Sealy, you delivered a winner!”


San Antonio, TX

“Convenience, comfort, and cooling...what more can you ask for?!”


Whitman, MA

“I loved how the mattress was delivered in a compact box right to my door. Almost two weeks later, I'm getting the most sound sleep of my life!”


West Hollywood, CA

Mattress in a Box

A mattress delivered in a box?

That's right, your Cocoon™ by Sealy is shipped for free in an easily moveable box that measures 15" x 15" x 44". Sorry, cute dog not included.

Even the setup is chill

Your Cocoon™ by Sealy is shipped for free in an easily moveable box that measures 15” x 15” x 44”. Unpack, unroll, and feel the difference for yourself.

Watch Moving

Moving the box

Watch Unboxing

Unpacking the box

Watch Unrolling

Unrolling the mattress

Watch Feel

trying out the mattress

Free Returns

100 Night Trial · Free Shipping · 10 year mattress warranty

Our hassle free promise

We want to make sure you're getting the best sleep of your life. If you don't love your mattress, we'll refund your money, pick it up for free, and donate it to a local charity - no questions asked.


For questions about our products, check out our FAQs page or give our Support team a call.

Learn More

Cocoon by Sealy Classic Mattress

Cocoon Classic

Cocoon Classic

The original Cocoon mattress, a non-cooling version of our premium cooling Chill mattress. Available at $799 (Queen).

Classic Mattress

Exclusive Cocoon by Sealy Offer
Why pay more for less somewhere else?

Cocoon by Sealy

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