I ordered from three different brands that all claimed to have the ‘best’ cooling comforter. The moment I unboxed them, Mellow stood out right away. The quality was obvious. After just a few nights of sleep, there was no question in my mind. This one’s the winner.

Emily K.

Verified Customer

CloudCool™ Cooling Comforter

$79.99 $119.99

Savings based on comparable value.Learn more

Pricing Disclosure

The listed comparable value represents the manufacturer's suggested retail price or the average retail price of similar products with comparable features, materials, and construction available from major retailers at the time of listing. Mellow's sale price reflects our direct-to-consumer pricing model, which eliminates traditional retail markups. Comparable values are reviewed periodically and may not reflect real-time pricing from all retailers.

Select Color: White
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Size Guide
Voted #1 Cooling Comforter
Voted #1 Cooling Comforter
Dual Layer - Arctic Silk Side + CloudKnit Side
Dual Layer - Arctic Silk Side + CloudKnit Side
OEKO-TEX® Certified & Naia™ Sustainable Filling
OEKO-TEX® Certified & Naia™ Sustainable Filling
Hypoallergenic, Antibacterial & 100% Vegan
Hypoallergenic, Antibacterial & 100% Vegan
Fully Machine Washable
Fully Machine Washable

Our dual-sided comforter delivers instant cool-to-the-touch relief with a silk-smooth finish on one side, and breathable, cloud-soft knit on the other. Designed to regulate temperature and wick away heat, it keeps you balanced and comfortable all night long. 

30-Day Trial

30-Day Trial

Hassle-Free Returns

Hassle-Free Returns

Overview

Meet the Mellow Cooling Comforter, our lightweight, dual-sided design for hot sleepers. Flip between silky-cool Arctic Silk and soft, breathable CloudKnit to dial in your chill. It delivers a plush, full loft without the heat, with a no-duvet-cover, machine-washable shell and Naia™ sustainable fill that keeps air flowing all night. OEKO-TEX® certified, hypoallergenic, antibacterial, and 100% vegan for clean, effortless sleep.

Materials

OEKO-TEX® Certified: Hypoallergenic, safe for sensitive skin, and responsibly made with ethical and eco-friendly processes.

Naia™ Sustainable Filling: Silky-smooth, breathable, and biodegradable, made from sustainably sourced materials for comfort you can feel good about.

Care

Fully machine-washable and dryer-safe, no cover needed, no extra steps.

FAQ

Will it keep me cool all night?
Yes. The dual-sided design lets you choose Arctic Silk for an instant cool handfeel or CloudKnit for soft, breathable cool. Airflow through the Naia™ fill helps heat escape so you stay comfortable till morning.

How is this different from other “cooling” comforters?
Most use one fabric and call it a day. Mellow gives you two cooling faces, a built-in shell (no duvet cover), machine-washable construction, and a sustainable Naia™ fill so it’s cooler, cleaner, and easier to live with.

Is it actually cool-to-the-touch or just “breathable”?
Arctic Silk feels noticeably cool on contact; CloudKnit feels like a premium, t-shirt-soft cool. Flip to the sensation you prefer.

Lightweight means thin. Will it still feel full?
It’s light on heat, full on loft. The airy Naia™ core keeps a plush, comforter feel without the heavy, trapped warmth.

Do I need a duvet cover?
No. It has a built-in, duvet-style shell, no shifting, no extra layers, no hassle.

Good for night sweats and humid climates?
Yes. The breathable weave and airy fill move heat and moisture away from your body, helping you stay drier and more comfortable.

Can couples with different temps make this work?
Yes, set the comforter with the side you want facing up (Arctic Silk for max chill, CloudKnit for softer cool) and fine-tune with your thermostat or a light layer. It balances comfort without the blanket battles.

Is it safe for sensitive skin?
Absolutely. OEKO-TEX® certified, hypoallergenic, and antibacterial, so it’s gentle on skin and stays fresher between washes.

Is it vegan? How does it compare to down?
It’s 100% vegan—no feathers, no animal by-products. You get cool, breathable loft without down’s heat, allergens, or special-care requirements.

How do I wash it? Will it clump?
Just machine wash and tumble dry, no cover to remove, no dry cleaner. The construction is designed to wash evenly and fluff back up after drying.

Can I use it year-round?
Yes. Use it solo in warmer months, then layer with a sheet or throw when temps drop.

What if I don’t love it?
You’re covered with a 30 day return period and a lifetime warranty sleep on it, stress-free

I ordered from three different brands that all claimed to have the ‘best’ cooling comforter. The moment I unboxed them, Mellow stood out right away. The quality was obvious. After just a few nights of sleep, there was no question in my mind. This one’s the winner.

Emily K.

Verified Customer

Effortless Cooling. All-Night Comfort.

A dual-sided cooling comforter with silky Arctic Silk on one side and soft

Dual-Sided Cooling

Flip between silky-smooth Arctic Silk for maximum chill or soft, breathable CloudKnit for cozy, cool comfort.

Lightweight Yet Full

Designed with airy, breathable fill that feels plush and full like a comforter without the heavy heat.

Sustainable Fill

Made with Naia™ eco-friendly fibers, biodegradable, silky-smooth, and responsibly sourced.

Hypoallergenic & Antibacterial

OEKO-TEX® certified and safe for sensitive skin, keeping your sleep clean and irritation-free.

100% Vegan

No animal products, no compromises, just cruelty-free comfort you can feel good about.

Machine Washable

Fully washable and dryer-safe, no extra covers or dry cleaning required.

Luxury Materials, Thoughtfully Designed.

Dual-sided design

Dual-sided design

Silky Arctic Silk for instant chill, plush CloudKnit for cozy cool flip to the side that feels just right.

Naia™ Sustainable Fill

Naia™ Sustainable Fill

Silky, eco-friendly core with hidden air channels keeps airflow moving all night, for cool, breathable comfort.

What Your Cooling Comforter Should Be Like

mellow Logo Standard Comforters Down Comforters
Dual-Sided Cooling
Yes
No
No
Lightweight Yet Full
Yes
No
No
Baby-Grade Fabric
Yes
No
No
Moisture-Wicking
Yes
No
No
100% Vegan Fill
Yes
No
No
Allergy Safe
Yes
No
No
Antibacterial
Yes
No
No

Frequently Asked Questions

Everything you need to know about the CloudCool™ Cooling Comforter.

Will this comforter keep me at the right temperature?

Yes. The dual-sided design lets you choose Arctic Silk for an instant cool hand feel or CloudKnit for soft, breathable cool. Airflow through the Naia™ fill helps heat escape so you stay comfortable till morning.

How is this different from other “cooling” comforters?

Most use one fabric and call it a day. mellow gives you two cooling faces, a built-in shell (no duvet cover), machine-washable construction, and a sustainable Naia™ fill so it’s cooler, cleaner, and easier to live with.

Is it actually cool-to-the-touch or just “breathable”?

Arctic Silk feels noticeably cool on contact; CloudKnit feels like a premium, t-shirt-soft cool. Flip to the sensation you prefer.

Lightweight means thin. Will it still feel full?

It’s light on heat, full on loft. The airy Naia™ core keeps a plush, comforter feel without the heavy, trapped warmth.

Do I need a duvet cover?

No. It has a built-in, duvet-style shell, no shifting, no extra layers, no hassle.

Good for night sweats and humid climates?

Yes. The breathable weave and airy fill move heat and moisture away from your body, helping you stay drier and more comfortable.

Can I return it if I don’t love it?

Yes. Every comforter comes with a 30-day return.

Is it good for sensitive skin?

Yes. mellow is made with OEKO-TEX® certified fabrics that are hypoallergenic and safe for sensitive skin. It’s clean, breathable, and antibacterial by design.

Is it vegan? How does it compare to down?

It’s 100% vegan, no feathers, no animal by-products. You get cool, breathable loft without down’s heat, allergens, or special-care requirements.

Trusted By Thousands Of Happy Sleepers

Real people are sleeping deeper, cooler, and more comfortably with mellow.

0%

of mellow customers sleep at their ideal temperature

0%

would recommend mellow to their family and friends

0%

of mellow customers have left 5 star reviews

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