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"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
1,000+ Happy Sleepers
Select Size:
Size Guide
Our dual-sided blanket 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.
Voted #1 Cooling Comforter
Dual Layer - Arctic Silk Side + CloudKnit Side
OEKO-TEX® Certified & Naia™ Sustainable Filling
Hypoallergenic, Antibacterial & 100% Vegan
Fully Machine Washable
Ships in 24 hours
30-day trial
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.
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
Care
Fully machine-washable and dryer-safe, no cover needed, no extra steps.
“This is literally the softest comforter you'll ever own. I purchased it for the functionality, but when I got it, I was blown away by the material and softness. Don't doubt, mellow, just get it.”
Tara M.
Verified Customer
Sleep Innovation Winner
Featured on USA Today
Lifetime warranty
Voted Best Pillows
Award Winning Comforters
Sleep Innovation Winner
Lifetime warranty
Feature on GMA
Voted Best Pillows
Sleep Innovation Winner
Featured on USA Today
Lifetime warranty
Voted Best Pillows
Award Winning Comforters
Sleep Innovation Winner
Lifetime warranty
Feature on GMA
Voted Best Pillows
Effortless Cooling &
All-Night Comfort.
A dual-sided cooling comforter with silky Arctic
Silk on one side and soft CloudKnit on the other. Lightweight, breathable, and machine-washable.
Effortless Cooling. All-Night Comfort.
A dual-sided cooling comforter with silky Arctic Silk on one side and soft
CloudKnit on the other. Lightweight, breathable, and machine-washable.
01
Dual-Sided Cooling
Flip between silky-smooth Arctic Silk for maximum chill or soft, breathable CloudKnit for cozy, cool comfort.
02
Lightweight Yet Full
Designed with airy, breathable fill that feels plush and full like a comforter without the heavy heat.
03
Sustainable Fill
Made with Naia™ eco-friendly fibers, biodegradable, silky-smooth, and responsibly sourced.
04
Hypoallergenic & Antibacterial
OEKO-TEX® certified and safe for sensitive skin, keeping your sleep clean and irritation-free.
05
100% Vegan
No animal products, no compromises, just cruelty-free comfort you can feel good about.
06
Machine Washable
Fully washable and dryer-safe, no extra covers or dry cleaning required.
Luxury Materials, Thoughtfully Designed.
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
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 vs. The Rest
Dual-Sided Cooling
Lightweight Yet Full
Moisture-Wicking
100% Vegan Fill
Allergy Safe
Antibacterial
Yes
Yes
Yes
Yes
Yes
Yes
Standard Comforters
No
No
No
No
No
No
Down Comforters
No
No
No
No
No
No
Frequently asked questions
Will this comforter keep me cool all night?
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.
Real Customers.
Real Sleep Upgrades.
Real Customers. Real Sleep Upgrades.
trusted by thousands of Happy sleepers
Real people are sleeping deeper, cooler, and more comfortably with mellow.
of mellow Sleep at their ideal temperature
would recommend mellow to their family and friends
of mellow customers have left 5 star reviews
