Designed for your ideal temperature.

It’s bedding that keeps you warm but also cool, which sounds like magic but is just science.

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Best Overall Cooling Comforter

Best Overall Cooling Mattress Pad

Coolest Pillow Ever

Best Temperature Regulating Mattress Pad

Overall Review

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Free Shipping & Returns

All U.S. orders are shipped right to your door, free of charge.

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Try It For 60 Nights

Sleep on it, wash it, and really put it to the test for two whole months! If you don’t love your new bedding, just return it for a full refund. No questions asked!


Soft as silk and more breathable than cotton, it's the result of two temperature-regulating technologies: proactive Outlast® viscose fibers and the superior moisture-wicking capabilities of Tencel® lyocell. Together, they create the highest performing, softest sheet set on the market.

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Your new everyday comforter. Ideal for keeping your nights cooler, but still warm enough for cozy winters. With NASA-approved temperature regulating technology this is perfect for those in warmer climates, or those who just prefer a lighter cover.

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Flip to the cool side. Oh wait, they're both cool. The UltraCool Pillow takes the technology from our temperature-regulating bedding and incorporates it into a pillow. Our premium fabric designed for NASA, paired with Polysilk™ down-alternative fiberfill, delivers the most comfortable place you'll rest your head.

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"With Slumber Cloud's cover, I could instantly feel a difference"

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Shop our entire collection.

Every layer of our advanced bedding system is engineered to respond
to changes in your body’s temperature for a cooler, more comfortable
night’s rest.

Shop Our Collection

See what others are saying.

"Best mattress pad ever!"

"Best mattress pad ever! I've tried other "stay cool" mattress pads, but never had any luck. This is amazing! I sleep much better and cooler. I highly recommend this one!"


Verified Customer

"My home away from home and the comfiest coolest down blanket from @slumbercloud"


Essential Sheet Set

"For years I would sweat through the night while my wife was always chilly. We can now sleep closer together, stay dry and comfortable."

Matt V.

Verified Customer

"Not too hot, not too cold—this temperature-regulating bedding will keep you comfortable all night long."

"Wonderful Sheets"

"Wonderful sheets, so comfortable and keeps me cool, best I have ever had. I will absolutely buy more."

Christann M.

Verified Customer


"Skeptical but proven wrong"

"Skeptical but proven wrong. I was skeptical about this comforter, however it is great. Lightweight but warm. Really helps if you tend to sweat all night."


Verified Customer

"In love with our new sheets from @slumbercloud!! SO SOFT. 🙏"


"So soft and silk"

This is the best blanket I've ever owned. At first since it's so lightweight, I wondered if it would keep me warm. It works so well. It's so soft and silky.

Linda B.

Verified Customer

"You know how much our family loves all things NASA and space!" -@champagneandmacaroons

"Actually keeps my head COOL!!!!"

Just the right fit for me. Very comfortable support and YES it actually keeps my head COOL!!!! So cool!"

Kathleen C.

Verified Customer

"SlumberCloud has a whole lineup of advanced foundational layers for your bed. ☁️"


"I'm a total convert now"

By golly it works. I was a huge skeptic of the 'NASA cooling fabric' but the elves at Slumber Cloud fooled me! I'm a total convert now.

Eric P.

Verified Customer

"Never to hot or to cold it’s like a little personal magician!"


"Nothing but awesome!"

Nothing but awesome! This is the best sleepwear! Lightweight and keeps you at the perfect temp.

Bradley M.

Verified Customer

"A favourite among our consumer testers, who said they wanted to keep it for themselves"

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