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Comforters & Duvet Covers

The perfect top layer for the perfect sleep environment. Sweat less with a top cover designed to reduce overheating and sweating before you get too hot. With our comforters and duvet covers you’ll spend more time sleeping and less time pushing and pulling at the covers. Let us help you find the best blanket for your bed.
- Best Seller -
Cumulus Comforter
Cumulus Comforter
Born from space, this comforter automatically absorbs, stores, and releases heat as the temperature under your covers changes. It fights off the one thing that makes you sweat at night - humidity. You can finally stop pushing and pulling the covers on and off all night trying to find the perfect temperature.
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From $139.00
  • Hypoallergenic and easy-care
  • NASA-Engineered Outlast® technology
  • 300 thread count, 100% Damask cotton outer cover
Slumber Cloud Cumulus Lightweight Duvet
Cumulus Lightweight Duvet
Our lightweight duvet is the perfect balance of comfort and weight. We've layered premium fiber fill with Outlast® fabric to create a comforter that automatically regulates your temperature. Light enough to leave on your bed all year-round, it will keep you warm and cozy in winter, and cool and comfortable in summer.
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From $119.00
  • NASA-Engineered Outlast® technology
  • 300 thread count, 100% cotton outer cover
  • Hypoallergenic and easy-care
- New -
Stratus Cooling Duvet Cover
Stratus Duvet Cover
Protect your duvet or comforter without overheating, the Stratus Duvet Cover feels as good as it looks. Designed to fit over your duvet or comforter, this cover is made with spaced aged Outlast® technology to set the ideal conditions for cooler, deeper sleep, while putting an end to sleep disrupting heat and humidity build up.
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From $109.00
  • Hypoallergenic and easy-care
  • NASA-Engineered Outlast® fibers
  • 300 thread count - 40% Outlast® viscose / 60% cotton
  • Easy to use button enclosure and 4 corner ties

Which one is right for me

I have a duvet that I love but I am overheating at night.
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I like to sleep with a blanket year round but I find I overheat in the summer and freeze in the winter.
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I Enjoy Using A Blanket But Wake Up Every Night Hot And Sweaty.
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Free shipping on all orders

Don't pay for shipping! All U.S. orders are shipped right to your door free of charge.

Try it risk free for 60 nights

Sleep on it, wash it, and really put it to the test. If you don't LOVE your new bedding, simply return it for a full refund. No questions asked!

Out of this world comfort

The secret behind Slumber Cloud bedding is the patented temperature regulating technology called Outlast® technology built right into our products. Originally designed for NASA astronauts to regulate their temperatures in space, Outlast® technology is made up of thousands of microscopic "beads" called Thermocules™. Each one of these Thermocules™ is designed to absorb, store, or release heat based to keep you in your ideal sleeping temperature zone.

How it works

Build the bed of your dreams

Pick and choose each layer of your bed with the Slumber Cloud Bundle for a truly custom "sleep system" designed with space age temperature regulating technology for an unmatched sleeping experience. Plus you'll save 10% versus buying separately when you bundle $400 or more of products together.

Slumber Cloud Bundle

Slumber Cloud Bundle

The technology originally made for NASA spacesuits is now available for your bed. Each piece of Slumber Cloud bedding works in unison to control the microclimate of your bed to reduce heat and moisture buildup and cool down even the hottest of sleepers. The space age Outlast® technology built right into each product automatically absorbs, stores, and releases heat as the temperature under your covers changes to help you make the most of your sleep. Scientifically proven to outperform traditional bedding, this bundle combines multiple products together into a "sleep system" for maximum performance. Reclaim your night and transform your bed with performance bedding that works as hard as you do.
  • NASA-inspired Outlast® technology for maximum heat and moisture management and added comfort
  • State-of-the-art products incorporate layer upon layer of proprietary Outlast® temperature regulating fabric so you are always getting the highest quality sleep
  • Multiple layers equals the best performance to help you sleep more comfortably, sweat less, and wake up ready to take on your day
  • No more pushing and pulling at the covers trying to find the perfect temperature
  • Easy to care for – just throw it in the washing machine

Mattress Pads

Twin
39” x 75”
Twin XL
39” x 80”
Full
54" x 75”
Queen
60” x 80”
King
78” x 80”
Cal-King
72” x 84”

Fitted Sheet

Twin
39” x 75” x 15”
Twin XL
39” x 80” x 15"
Full
54" x 75" x 15"
Queen
60” x 80” x 15"
King
78” x 80” x 15"
Cal-King
72” x 84” x 15"

Flat Sheet

Twin
66” x 96”
Twin XL
66” x 102”
Full
83” x 92”
Queen
92” x 102”
King
108” x 102”
Cal-King
108” x 102”

Pillowcases

Twin
(1) 20” x 30”
Twin XL
(1) 20” x 30”
Full
(2) 20” x 30”
Queen
(2) 20” x 30”
King
(2) 20” x 40”
Cal-King
(2) 20” x 40”

Pillows

Standard
20” x 26”
Queen
20” x 30”
King
20” x 36”

Pillow Covers

Standard
21” x 29”
Queen
21” x 31”
King
21” x 37”

Comforter

Twin / Twin XL
68” x 88”
Full / Queen
90” x 98”
King
104” x 98”

Duvet Cover

Full / Queen
91” x 99”
King
109” x 99”

Mattress Pad

From $129.00

Stratus Sheet Set

From $139.00

Cumulus Comforter

From $139.00

Nacreous Pillow Cover

From $69.00

Cirrus Pillow

From $49.00
Mattress Pad

Mattress Pad

From $129.00
The core piece of bedding to sleep at the perfect temperature without that hot, sweaty feeling. If you need the most temperature regulation, the mattress pad is right for you. If you need 100% waterproof protection that stays cool, choose the protector.
Stratus Sheet Set

Stratus Sheet Set

From $139.00
More than thread count, we made our sheets with threads that count. Soft, cool, and perfectly weighted, these sheets are the ideal blend between the softness and durability of cotton and the unique temperature regulation of Outlast® fibers to help you get the most comfortable night's sleep possible.
Cumulus Comforter

Cumulus Comforter

From $139.00
Born from space, this comforter automatically absorbs, stores, and releases heat as the temperature under your covers changes. It fights off the one thing that makes you sweat at night - humidity. You can finally stop pushing and pulling the covers on and off all night trying to find the perfect temperature.
Nacreous Cooling Pillow Cover

Nacreous Pillow Cover

From $69.00
Our best seller, this set of 2 pillow covers zip over your pillows to automatically adapt to temperature changes for cool comfort throughout the night. These state-of-the-art pillow covers incorporate dual layers of Outlast® temperature regulating fabric so you are always sleeping on the cool side.
Cirrus Pillow

Cirrus Pillow

From $49.00
With NASA-inspired technology built right into the Cirrus Pillow, there's no more flipping to the "cool side". A cooling fabric shell infused with patented Outlast® technology combats heat while your choice of luxury core fibers provide the perfect amount of support for any sleeping position.

You're just $400 away from saving 10%

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Pay at your own pace with Klarna Credit. If paid in full within 6 months, no interest will be charged. Interest will be charged at 19.99% if the purchase balance is not paid in full by the end of the promotional period. Subject to credit terms. Learn More Pay For Orders $299+ Over 6 Months Interest Free

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