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.
CloudCool™ Cooling Comforter
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Voted #1 Cooling Comforter
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Dual Layer - Arctic Silk Side + CloudKnit Side
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OEKO-TEX® Certified & Naia™ Sustainable Filling
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Hypoallergenic, Antibacterial & 100% Vegan
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Fully Machine Washable
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.
Fully machine washable — no cover or dry cleaning needed. Wash on a gentle cycle and tumble dry low to keep it fluffy and fresh.
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.
One side is 3.5 inches high, the other is 4.3 inches. Switch the pillow to choose your preferred neck support height.
Yes. CloudAlign's contoured zones adapt to all sleep positions — side, back, and stomach — providing targeted support and alignment.
No. CloudAlign is made with shape-retaining memory foam that stays supportive.
Absolutely. The OEKO-TEX® certified cover is hypoallergenic, breathable, and skin-friendly.
When you first open your mellow pillow, you may notice a slight "new foam" or "fresh out of the box" scent. This is completely normal and temporary.
Our pillow uses high-quality foam materials that are compressed and sealed for shipping. When the pillow is unboxed, the materials naturally release trapped air from packaging — a process commonly referred to as off-gassing.
The scent is not harmful and typically dissipates on its own within 24–72 hours.
No. The initial scent does not mean your pillow is toxic or unsafe.
The materials used in the mellow pillow meet strict safety standards and are designed for everyday sleep use. The smell comes from the manufacturing and packaging process, not from anything being released into the pillow while you sleep.
Once aired out, the scent fades quickly and does not return.
If you'd like to speed things up, we recommend:
- Removing the pillow from its packaging immediately
- Letting it air out in a well-ventilated room
- Allowing 24–72 hours for full freshness
Using a pillowcase and normal room airflow is usually all it takes.






A dual-sided cooling comforter with silky Arctic Silk on one side and soft CloudKnit on the other. Lightweight, breathable, and machine-washable.
Dual-height design. Built-in alignment support. No fluffing needed. Chiropractor-approved comfort starts here.
The softest shell you've ever felt, crafted with OEKO-TEX® Class I certified material, safe enough for a baby's skin.
Silky, eco-friendly core with hidden air channels keeps airflow moving all night, for breathable comfort.
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Standard Comforters | Down Comforters | |
|---|---|---|---|
| Dual-Sided Cooling | Yes | No | No |
| Lightweight Yet Full | Yes | No | No |
| Moisture-Wicking | Yes | No | No |
| 100% Vegan Fill | Yes | No | No |
| Allergy Safe | Yes | No | No |
| Antibacterial | Yes | No | No |
Real people are sleeping deeper, cooler, and more comfortably with mellow.
of mellow customers sleep at their ideal temperature
would recommend mellow to their family and friends
of mellow customers have left 5 star reviews