Every Feature Has a Purpose.

From temperature control to easy care, everything we build is designed to make sleep easier, cleaner, and more comfortable.

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Temperature Control

✔ Adapts to your body temperature all night long
✔ Whether you run hot or cold (or both), Mellow’s self-
regulating comforter adjusts to you

Built-in Duvet Cover

✔ Built-in duvet shell—no extra cover needed
✔ Unzip and toss the whole thing in the washing machine
✔ Machine washable and dryer safe

Dual-Layer Sleep System

✔ Two layers that zip apart or together
✔ Zip together for a heavier comforter
✔ Zip apart for a cooler comforter

HeatLock™ + CoolWick™

✔ HeatLock™ top layer traps warmth when you need it
✔ CoolWick™ bottom layer promotes airflow and pulls moisture off your skin

No Duvet Cover Needed

✔ Silky-smooth feel that’s breathable and luxurious
✔ No scratchy covers, no stiffness, just soft, clean sleep
✔Cozy enough for winter, light enough for summer

Premium Materials That Last

✔ OEKO-TEX® certified, skin-safe, and hypoallergenic
✔ Naia™ sustainable fiber fill: breathable, biodegradable, and built to stay plush
✔TUV Austria® certifiedthird-party verified for quality & performance

Dual-layer Comfort

A dual-layer design that adapts to your body’s temperature: the top layer locks in warmth,
while the bottom layer wicks away sweat to keep you dry and fresh. It’s two comforters in one.
Unzip them for lighter coverage,or keep them together for a warmer, cozier sleep.

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Dual-layer Comfort

A dual-layer design that adapts to your body’s temperature: the top layer locks in warmth,
while the bottom layer wicks away sweat to keep you dry and fresh. It’s two comforters in one.
Unzip them for lighter coverage,or keep them together for a warmer, cozier sleep.

Learn More

No Duvet Cover Needed

No more comforters bunching up inside the cover, and no more struggling with duvet covers—
cozz has a built-in duvet that’s softer, cozier, and fits perfectly every time.

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Machine Washable

Our CloudControl comforter is entirely machine washable and dryer-safe.
You can wash it by unzipping the layers for faster drying.
There are no covers to remove, no dry cleaning, just simple, hassle-free cleaning.

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Hypoallergenic + Antibacterial

Cozz is made with OEKO-TEX® certified, hypoallergenic fabrics and
an antibacterial finish that helps reduce allergens,
irritation, and odor buildup. Designed for sensitive skin and everyday freshness,
it keeps your sleep environment clean, safe, and comfortable.

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Premium Quality That Lasts

Crafted with OEKO-TEX® certified fabrics, cozz is hypoallergenic, safe for sensitive skin,
and responsibly made.Filled with Naia™ sustainable fibers, it stays silky-smooth, breathable,
and biodegradable —designed for lasting comfort without flattening, bunching, or wearing down.

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Frequently asked questions

Will this comforter keep me at the right temperature?

Yes. Cozz uses advanced temperature-regulating fill and breathable fabric to adapt your sleep environment to your body. Its dual-layer design lets you unzip for customizable warmth and weight.

Do I need a duvet cover?

Nope. Cozz is built to be used as-is. Its sleek outer fabric is soft, antibacterial, and easy to clean—no extra layers needed.

Is it really machine washable?

Yes. Both layers are fully machine washable and dryer safe. We recommend washing the bottom layer every 3 weeks and the top layer every 1–3 months.

How does cozz compare to Buffy, Rest, or Tuft & Needle?

Unlike one-layer comforters, cozz offers two layers you can zip together or separate. No cover required. Fully washable. Customizable. It’s everything others aren’t.

Is this worth the price?

Absolutely. You’re getting two premium comforters in one—each designed for comfort, performance, and easy care. No add-ons, no gimmicks, just thoughtful design that works year-round.