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UltraCool Comforter

Introducing the UltraCool Comforter, the perfect solution for a comfortable and cool night's sleep. Our comforter features an outer fabric made of cooling nylon and spandex, which not only gives it a softer-than-silk feel but also actively cools you down. The NASA-engineered temperature regulation fiberfill inside automatically adjusts to any fluctuations in temperature, ensuring you remain at the perfect temperature all year long. At the weight of a traditional comforter, it's the ideal choice for year-round use. Say goodbye to restless nights caused by overheating and hello to the UltraCool Comforter, the ultimate in temperature regulation and comfort.


Color

White

Size View Size Guide
ULTRACOOL COMFORTER
Twin/Twin XL 76" x 86"
Full/Queen 90" x 98"
King/Cal-King 108" x 98"

*For Cal-King Mattresses simply rotate the comforter 90 degrees

Your Total

$269
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Free Shipping

Extended Holiday Returns

Financing

How Do They Compare?

UltraCool Comforter

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

7 LBS 3 OZ

Weight

~1.5"

Thickness

$279

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

6 LBS 3 OZ

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~1.5"

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Coolness Rating

4 LBS 9 OZ

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~1.5"

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MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

6 LBS 1 OZ

Weight

0.25"

Thickness

$219

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

5 LBS 1 OZ

Weight

0.25"

Thickness

$199

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

4.0 LBS

Weight

0.25"

Thickness

$159

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

6 LBS 1 OZ

Weight

0.25"

Thickness

$199

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

5 LBS 1 OZ

Weight

0.25"

Thickness

$179

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

4.0 LBS

Weight

0.25"

Thickness

$139

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

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10 LBS

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~1.5"

Thickness

$299

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Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

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8 LBS 6 OZ

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~1.5"

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$279

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Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

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Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

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Thickness

$169

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Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

7 LBS 12 OZ

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Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

6 LBS 9 OZ

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Thickness

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Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

5 LBS 1 OZ

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~2"

Thickness

$189

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

6 LBS 1 OZ

Weight

0.25"

Thickness

$219

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

5 LBS 1 OZ

Weight

0.25"

Thickness

$199

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

4.0 LBS

Weight

0.25"

Thickness

$159

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

6 LBS 1 OZ

Weight

0.25"

Thickness

$199

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

5 LBS 1 OZ

Weight

0.25"

Thickness

$179

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

4.0 LBS

Weight

0.25"

Thickness

$139

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

10 LBS

Weight

~1.5"

Thickness

$299

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

8 LBS 6 OZ

Weight

~1.5"

Thickness

$279

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

2 LBS 14 OZ

Weight

~1"

Thickness

$59

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

18 LBS

Weight

~1.5"

Thickness

$169

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

7 LBS 12 OZ

Weight

~2"

Thickness

$249

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

6 LBS 9 OZ

Weight

~2"

Thickness

$229

MSRP

Snowflake Rating Snowflake Rating Snowflake Rating Snowflake Rating

Coolness Rating

5 LBS 1 OZ

Weight

~2"

Thickness

$189

MSRP

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

155 gsm 89% Cooling Nylon 11% Spandex Jersey outer cover for additional temperature-regulation

300 gsm fill weight is the weight of a traditional 3 season comforter but without the traditional heat buildup

Oeko-Tex Standard 100 Certified Technology

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 an 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”.

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.

Outlast® materials improve comfort for: Anyone looking for a more comfortable night’s sleep - they’ll sleep cooler and more comfortably. Sleepers who struggle with hot flashes and night sweats - proactive temperature regulation means they’ll sleep cooler and drier and wake up feeling refreshed. Thermally incompatible couples - individuals can sleep at their own ideal temperature.

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

The thoughtfulness is in the details.

It doesn’t stop at thread count. It’s the little things, the thoughtful details, that make our products the best available.

12” Quilt Boxing

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

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

Just throw it in your home washing machine

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 a 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 or Performance Duvet Cover for an added layer of Outlast® temperature-regulation and breathability.

Does this come with cover loops or ties?

Yes, the UltraCool Comforter comes with cover loops.

Does this product need to be paired with a duvet cover?

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 UltraCool Comforter?

To wash your UltraCool Comforter, please follow the washing instructions on the tags. 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 UltraCool Comforter, please dry on low heat or air dry. Do not iron your UltraCool Comforter. To reduce wrinkling, take your UltraCool Comforter out of the dryer and immediately place it 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?

Bedding: All bedding products, excluding “Final Sale” items, 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. A refund will be issued, within 7 business days of receiving the returned product.

Final Sale: Final Sale are not eligible for return, exchange, or the 60 night trial period.

Apparel & Home: Items in new and unopened condition are eligible for a return or exchange within 60 days of purchase. In the event of a return or exchange, our team will inspect the item and if determined it is new, a refund or exchange will be issued within 7 business days of receipt. If the item is in used condition, missing tags, or has been removed from the packaging, the return or exchange will be voided and the product donated to a local charity.

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.

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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!

Imagine what the world would be like if everyone got a good night’s sleep.