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.
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.
Two woman and a dog on a bed with 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.
Woman holding her coffee while wrapped in 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.  |  rollover
rollover
Man and woman eating breakfast with 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.
Detailed view of the piping on 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.
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.
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.
Two woman and a dog on a bed with 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.
Woman holding her coffee while wrapped in 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.  |  rollover
Man and woman eating breakfast with 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.
Detailed view of the piping on 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.

UltraCool Comforter

With an outer fabric made of cooling nylon and spandex you get a softer than silk hand feel that actively cools. Inside is NASA grade temperature regulation fiberfill, which automatically adjusts to fluctuations in temperatures. At the weight of a traditional comforter, something uncommon in a “cooling” comforter, the advanced cooling fibers keep you and your partner at the perfect temperature all night and all year long.

Quantity
1
Color White
Size

UltraCool Comforter

 
Twin/Twin XL 76" x 86"
Full / Queen 90" x 98"
King / Cal-King 108" x 98"
  • Queen
  • King
  • Twin XL
Your Total
$259
Free Shipping

Ground shipping and returns are FREE for all US orders. Shipping typically takes 3-7 business days for most in-stock merchandise. Canada and express shipments are available for an additional fee at checkout.

60 Night Trial

For your peace of mind, all our products come with a 60 night satisfaction guarantee, as well as a 180 night warranty. If you don't love your new bedding, simply send it back for a full purchase price refund. No questions asked! FYI we do our very best to donate returns to charity.

Financing

Utilize Shop Pay Installments or PayPal Credit during checkout as flexible payment plans to split your purchase amount into equal and interest-free payments.

Save 10% when you spend $400+

The Award Winning Slumber Cloud UltraCool Pillow made with Outlast® temperature regulation technology to help keep you cool and comfortable throughout the night

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The Award Winning Slumber Cloud Performance Mattress Pad made with Outlast® temperature regulation technology and Tencel to help you stay cool through the night.

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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.

UltraCool Comforter

$219 Save 10% when you spend $400+

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Additional details.

The UltraCool Comforter takes the ClimaDry™ by Outlast fiberfill raved about in our other blankets 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 handfeel.

  • Hypoallergenic, patented ClimaDry™ by Outlast fiberfill provides a down-like feel while regulating heat and moisture as you sleep Hypoallergenic, patented ClimaDry™ by Outlast fiberfill provides a down-like feel while regulating heat and moisture as you sleep
  • 155 gsm 89% Cooling Nylon 11% Spandex Jersey outer cover for additional temperature-regulation 155 gsm 89% Cooling Nylon 11% Spandex Jersey outer cover for additional temperature-regulation
  • Oeko-Tex Standard 100 Certified Technology Oeko-Tex Standard 100 Certified Technology
  • 300 gsm fill weight is the weight of a traditional 3 season comforter but without the traditional heat buildup 300 gsm fill weight is the weight of a traditional 3 season comforter but without the traditional heat buildup

How warm or cool is this?

Use the temperature guide to balance your bed just the way you like. Or compare other product features here.

Why we're different.

Traditional bedding and moisture wicking technologies react to changes in your body temperature while you sleep. Slumber Cloud is doing something different.

Slumber Cloud Bedding utilizes Outlast® technology for a unmatched approach to temperature regulation. Outlast® technology is proactive, not reactive. As your body temperature increases during sleep, Outlast® technology stores that heat to keep you cool, and then releases it as you cool down...keeping you feeling “just right”.

Technology

The cooling nylon and spandex outer cover provides a softer than silk hand feel that actively cools. In fact, third party lab tests show this has on of the highest Qmax values on the market (the higher the Qmax value the bigger the coolness feeling) - better than cotton, bamboo, silk, and lyocell.

Inside the ClimaDry™ down alternative fiberfill improves the microclimate of your bed to reduce heat and humidity build up for a more comfortable night’s sleep.

Materials

Outlast® materials improve comfort for:

Anyone looking for a more comfortable night’s sleep - they’ll sleep cooler!

Women experiencing menopause - hot flashes and resulting night sweats are reduced so they sleep cooler and drier.

Thermally incompatible couples - individuals sleep at their own ideal temperature

Benefits

We pass on everything we learn to our customers. From sleep studies to new technologies, we want to help you make informed decisions about your sleep.

Click to learn more about our studies:
Heat Sleep Study
Humidity Sleep Study

Research

The thoughtfulness is in the details.

It doesn’t stop at thread count. It’s the little things, the thoughtful details, that make the UltraCool Comforter the best on the market.

12’’ Quilt Boxing

12’’ Quilt Boxing

A framed 12’’ diamond quilt boxing keeps the fill from shifting while adding a polished look

Lab Proven Cooling

Lab Proven Cooling

Lab tests show this has one of the highest Qmax values on the market (the higher the Qmax value the bigger the coolness feeling) - better than cotton, bamboo, silk, and lyocell

Easy to Care For

Easy to Care For

Just throw it in your home washing machine and drier when it is still to freshen up your comforter

Most frequently asked questions.

I sleep hot, my partner sleeps cold. Is this going to work for us?

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.

How does the technology in the bedding work?

Outlast® technology is made of a unique material that can absorb, store and release excess heat. As an individual’s skin temperature increases, the technology will absorb that excess heat to help reduce overheating. The material will store the excess heat until the skin temperature begins to drop. When this occurs, the stored heat is released back to the individual to prevent chill.

By managing the build-up of heat and moisture under the covers, Outlast® technology helps keep you at a comfortable temperature so you sleep “just right.”

How many degrees cooler will this keep me?

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.

What's the difference between Slumber Cloud bedding and other "cooling" bedding I might have tried?

Slumber Cloud takes a proactive approach to temperature control by absorbing and storing excess heat when temperatures are too warm and releasing heat when temperatures are too cold. This approach is different than most other "cooling" bedding technologies/products on the market that are moisture-wicking (ex. Bamboo & Eucalyptus).

Moisture-wicking is a reactive approach because it doesn't start to cool you down until you build up sweat and moisture and then wicks it off of you. Our products are designed to prevent you from ever getting to the point of sweating and building up moisture.

What’s the difference between a duvet, comforter, and duvet cover?

A comforter tends to be a bit heavier in weight than a blanket and although they often are used in a single layer, they can be used inside a duvet cover for a more finished look. Similar to a comforter, a duvet is type of blanket that is generally lighter in weight and is used inside a duvet cover making it easy to care for.

Would using a duvet cover negate the humidity controlling effect of the Comforter?

Our comforters are designed to regulate your temperature even when placed inside a duvet cover. Feel free to use a duvet cover to get the finished look you are after as it will not have a drastic impact on the overall performance. However, we do recommend the Essential Duvet Cover for an added layer of Outlast® temperature-regulation and breathability.

What's the difference between the Performance Comforter, Lightweight Comforter, and Down Comforter?

Although all three comforter options are designed to help you sleep cooler and more comfortable, it's important to choose the version that best suits your sleeping needs. Below is a quick overview of each option to help you in this decision making:

Performance Comforter:

- A more traditional comforter in it's amount of loft. The Performance Comforter pairs Outlast® temperature-regulation fiberfill with a silky smooth Tencel®, a moisture wicking based outer cover. This combination of two technologies is best for sleepers who want a more lofty comforter that still sleeps cool.

Lightweight Comforter:

- Our most popular comforter, the Lightweight Comforter uses Outlast® temperature-regulation fiberfill to regulate heat and humidity build up. Our thinnest option, this is best suited for "hot" sleepers who still want a little bit of weight on top of them.

Down Comforter:

- A new twist on a classic comforter, this all-season Down Comforter uses premium down filling that "hugs" your body to sleep while our most advanced Outlast® temperature-regulation liner fabric provides the most amount of technology in any of our comforters for the best temperature performance.

What's the difference between a Lightweight Comforter and a Comforter?

The difference between the two comforter weights is the amount of filling. The lightweight option is significantly lighter & thinner at about 1/4th'' thick, and is the best option for hot sleepers.

The comforter is more of a three season weight, and for those who prefer a bit more loft & thickness at about 2''. Both of the comforters are filled with Outlast technology to assist with keeping you cool with proactive heat management.

Does this come with cover loops or ties?

The UltraCool Comforter uses a premium outer cover fabric meaning pairing the Ultra Cool Comforter with a duvet cover is not necessary for temperature-regulation performance

Do your comforters come in other colors than white?

At this time our comforters only come in the white color that is displayed. We do carry our Essential Duvet Cover in a few different color options that can be used in conjunction with our comforters.

Is this machine washable?

Yes! Just like traditional bedding, Slumber Cloud products are designed to be washed and dried in your home washer and dryer. Please carefully follow the care instructions on the tag of your products.

Can I use an iron on my bedding?

The technology in our bedding is sensitive to high heats - instead of ironing we recommend using a wrinkle release spray such as Iron In a Bottle for that crisp and finished look.

How do I sanitize my bedding?

Although we recommend against using high heat when washing your bedding there are products that can help with sanitizing your bedding. Here are a few of our favorites: Dropps & Tide

How should I remove stains?

Please refrain from using harsh chemicals such as bleach and oxiclean on your bedding. Instead opt for more natural alternatives such as a small amount of dish soap, a warm water & vinegar solution, or specialty formulated laundry detergent such as Dropps

How do I wash my comforter?

To wash your comforter, please follow the washing instructions on the tag. If you have cut your tags after purchase, then it is recommended to wash with Slumber Cloud Free & Clear Laundry Detergent or a mild detergent in cold water on a delicate spin cycle.

When it’s time to dry your comforter, please dry it on low heat or air dry. Do not iron your comforter. To reduce wrinkling, take your comforter out of the dryer and immediately place on your bed or use a wrinkle release spray such as Iron In a Bottle for that crisp and finished look.

Does Free Shipping Apply To International Orders?

Free shipping is only valid for US and Armed Forces delivery addresses. However, we do offer discounted shipping rates to Canada addresses.

Do you ship internationally?

Currently, we only ship internationally to Canada. At the time of purchase we include the cost of shipping, taxes, and duties for Canadian shipments. No additional fees will incur at delivery, but if they do please contact our customer service team at info@slumbercloud.com to take care of the issue.

For all other countries, If you find a forwarder or have a friend or family member here in the states, we would be more than happy to work with you to get it there.

Can I still return an item even if it's been washed?

We accept returns in any condition within 60 days of purchase! We want you to absolutely love your new bedding, so if you wash an item, try it out, and decide it's just not for you, we can definitely still initiate a return.

Please note we do our very best to donate all returns to local charities instead of a landfill. We appreciate your help in this process by washing any used items before returning them to us.

Are shipping fees covered for returns?

All shipping fees for domestic returns are completely free! When you initiate a return through our returns platform, you will receive a prepaid shipping label to get the item back to us.

If you live outside the US and are looking to initiate a return, please check out the return policy in the International FAQs.

How do I initiate a return?

If you're looking to initiate a return, just head over to our returns page!

Please note that we are not able to process returns for items listed as Final Sale or past the 60 day return period.

What is your return policy?

All products sold on the Slumber Cloud website come with a 60-Day Satisfaction Guarantee. Sleep on it, wash it, and really test it out - If you are not fully satisfied with your new bedding you can return the item(s) within 60 days of your purchase date, no questions asked. An refund will be issued, within 7 business days of receiving the returned product.

Are your products covered by a warranty?

Yes! All of our products are covered not only by the 60 night trial period but also a 180 day warranty which covers manufacturers defects (i.e. stitching, sizing).

Please note in addition to damage caused by disregard of care instructions, temperature performance is not considered a manufacturers defect or covered by the product warranty.

Verified Reviews

Free Shipping & Returns

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

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!

Couple hugging on bed — A favorite among our consumer testers, who said they wanted to keep it for themselves. Good Housekeeping

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

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