A simply made bed with a Slumber Cloud UltraCool Comforter.

The Ultimate Bundle

UltraCool Comforter, Performance Sheets, Performance Mattress Pad, UltraCool Pillow

Our top cooling products combined for a full bed makeover. Featuring our award winning UltraCool Comforter, dual-cooling Performance Sheets & Mattress Pad, plus one UltraCool Pillow.

What's Included:
- UltraCool Comforter
- Performance Sheet Set
- Performance Mattress Pad
- UltraCool Pillow

UltraCool Comforter:
- Luxuriously silky soft and stretchy cooling nylon cover fabric
- Hypoallergenic, patented ClimaDry™ by Outlast fiberfill provides a down-like feel while regulating heat and moisture as you sleep
- Corner loops keep it in place if used as an insert inside a duvet cover
- Oeko-Tex Standard 100 Certified Technology
- At the weight of a traditional comforter, it's the ideal choice for year-round use.

Performance Sheet Set:
- Patented Outlast® fibers and Tencel® blend gets softer with each wash
- Dual temperature regulation technologies
- Includes One Flat Sheet, One Fitted Sheet, and Two Pillowcases (Twin & Twin XL include one pillowcase
- Built in fitted sheet corner straps to hold it in place
- Fits mattresses up to 16'' deep
- Oeko-Tex Standard 100 Certified Technology

Performance Mattress Pad:
- Ultra lightweight proprietary Tencel® based Outlast® lining fabric for dual heat management technologies
- Luxury 100% down alternative fiber-fill
- Designed to be used underneath your fitted sheet
- Fits any mattress up to 20" of depth
- Oeko-Tex Standard 100 Certified Technology

2x UltraCool Pillow:
- Premium NASA-engineered Outlast® fabric on both sides fights off heat.
- Two firmness levels allow for perfect neck support.
- Designed to manage heat through your pillowcase.
- Oeko-Tex Standard 100 Certified Technology

UltraCool Comforter:
- 155 gsm 89% Cooling Nylon 11% Spandex Jersey outer cover
- 50% Outlast® ClimaDry polyester fiberfill / 50% polyester fiberfill
- 300 gsm fill weight
- 12" framed quilt boxing

Performance Sheet Set:
- 300 thread count 40% Outlast® viscose / 60% TENCEL™ lyocell

Performance Mattress Pad:
- 100% Tencel® Lyocell top fabric with Outlast® technology coating
- 100% polyester fiberfill
- Fullpocket 100% polyester knit elastic skirt

2x UltraCool Pillow:
- 100% polyester knit outer cover with Outlast® Technology coating
- 100% down-alternative polyester fiberfill

UltraCool Comforter:
Twin / Twin XL - 76" x 86"
Full / Queen - 90" x 98"
King / Cal-King - 108" x 98"

Performance Sheet Set:
Twin Sheet Set:
Fitted Sheet - 39" x 75 x 12"
Flat Sheet - 66" x 96"
Pillowcases - (1) 20" x 30"

Twin XL Sheet Set:
Fitted Sheet - 39" x 80" x 12"
Flat Sheet - 66" x 102"
Pillowcases - (1) 20" x 30"

Full Sheet Set:
Fitted Sheet - 54" x 75" x 15"
Flat Sheet - 83" x 92"
Pillowcases - (2) 20" x 30"

Queen Sheet Set:
Fitted Sheet - 60" x 80" x 15"
Flat Sheet - 92" x 102"
Pillowcases - (2) 20" x 30"

King Sheet Set:
Fitted Sheet - 78" x 80" x 15"
Flat Sheet - 108" x 102"
Pillowcases - (2) 20" x 40"

Cal-King Sheet Set:
Fitted Sheet - 72" x 84" x 15"
Flat Sheet - 108" x 102"
Pillowcases - (2) 20" x 40"

Split-King Sheet Set:
Fitted Sheet - (2) 39" x 80" x 15”
Flat Sheet - 108" x 102"
Pillowcases - (2) 20" x 40"

Performance Mattress Pad:
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"
Split-King - (2) 39" x 80"

2x UltraCool Pillow:
Standard - 20” x 26”
King - 20” x 36”

Basic Care:
Machine wash cold water on a gentle cycle with a mild detergent and with like colors only. Do not use fabric softener. Only use non-chlorine bleach when needed. Tumble dry low heat until completely dry. Remove from dryer immediately. Do not dry clean. Do not iron.

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

Sleep on it, wash it, and really put it to the test for 60 nights! If you don’t love your new bedding, just return it for a full refund. No questions asked!
The Ultimate Bundle
$724.00

The Ultimate Bundle

The Slumber Cloud UltraCool Comforter takes the ClimaDry™ by Outlast and pairs it with an 89% cooling nylon and 11% spandex outer cover that mimics silk creating the silky smooth and soft to the touch hand feel.
From $239.00
UltraCool Comforter
UltraCool Comforter
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3 colors available
Free Shipping & 60 Night Risk Free Trial
$279.00
A neatly folded Slumber Cloud Performance Sheet Set in white on a red background
On Sale from $204.00
Performance Sheet Set
Performance Sheet Set
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6 colors available
Up to -15% Free Shipping & 60 Night Risk Free Trial
$239.00
The Slumber Cloud Performance Mattress Pad with Outlast® temperature regulation technology to help keep you cool and comfortable throughout the night
On Sale from $219.00
Performance Mattress Pad
Performance Mattress Pad
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1 color available
Free Shipping & 60 Night Risk Free Trial
$259.00
Build your set

A better night’s sleep because of science.

It’s a fabric designed for NASA spacesuits up where temperatures change by 500 degrees. We think it can handle your bedroom. Learn More

The Only NASA Bedding

Our bedding utilizes Outlast®, the world’s only textile technology to have received the Certified Space Technology™ quality mark by the renowned Space Foundation.

Reduces Sweat By 50%

Our bedding provides proactive heat and moisture management, clinically proven to reduce night sweats by up to 50%. *Outlast Humidity Sleep Study

Improves Deep Sleep By 20%

Our bedding adapts to the ideal temperature of both hot and cold sleepers, proven to decrease tossing & turning and increase sleep efficiency by 20%.*Outlast Heat Sleep Study

Us vs Them

Slumber Cloud Cooling Bedding
Other "Cooling" Bamboo Products (like Buffy & Sleep Number)
Traditional Bedding (like Parachute & Brooklinen)
Proactive Temperature Regulation ?
Yes
No
No
Manages Temperature Fluctuations ?
Yes
Yes
No
Ideal for Thermally Incompatible Couples ?
Yes
No
No
Moisture Wicking Capabilities ?
Yes
Yes
No
Breathability ?
Yes
Yes
No

FAQs

Slumber Cloud products are designed to help manage heat and humidity build up. It is not an air conditioner with a set temperature degree, but it will react to your temperature all night long to reduce heat build up and manage temperature swings.

Definitely! When you sleep hot but your partner sleeps cold we refer to this as being “thermally incompatible”. Our bedding is designed to automatically adjust to each sleeper’s ideal sleep temperature. With the unique ability to react to each sleeper's temperature independently, our bedding ensures that both you and your partner will sleep comfortably all night long.

Nobody enjoys swimming in their covers. Our comforter comes with corner loops in all four corners hold it in place.

Pick your firmness based on your typical sleeping position. The soft-medium pillow offers the perfect support for those that prefer to sleep on their stomach and back. The medium-firm pillow is recommended for those who regularly sleep on their side and back.