The Slumber Cloud Adjustable UltraCool Pillow on a cream background
A GIF of the zippered gusset on a Slumber Cloud Adjustable UltraCool Pillow on a cream background
A gif of the Adjustable UltraCool Pillow being unzipped on a cream background
A gif of the Adjustable UltraCool Pillow being compressed on a cream background
Adjustable UltraCool Pillow
The zipper opened partially on the Slumber Cloud Adjustable UltraCool Pillow on a cream background
The zipper opened halfway on the Slumber Cloud Adjustable UltraCool Pillow on a cream background
The zipper opened fully on the Slumber Cloud Adjustable UltraCool Pillow on a cream background
The zippered gusset on a Slumber Cloud Adjustable UltraCool Pillow on a cream background
The zipper opening on a Slumber Cloud Adjustable UltraCool Pillow on a cream background
A young woman compressing the 100% down alternative fiber-fill insert of the Slumber Cloud Adjustable UltraCool Pillow on a cream background
A woman squeezing the memory foam insert of the Slumber Cloud Adjustable UltraCool Pillow
The inserts of the Slumber Cloud Adjustable UltraCool Pillow on a cream background
Adjustable UltraCool Pillow
Adjustable UltraCool Pillow
Adjustable UltraCool Pillow
Free Shipping & 60 Night Risk Free Trial

Adjustable UltraCool Pillow

Adjustable Firmness Made In USA NASA Cooling Technology

Our Adjustable UltraCool pillow offers customizable firmness with two inserts and zippered gussets, blending squishy fiberfill with supportive memory foam for cool comfort all night.


Back sleepers: Use both inserts and keep the gussets zipped closed

Side sleepers: Use both inserts and unzip the gussets

Stomach sleepers: Remove 1 insert of your choice and unzip the gussets

 

Product Comparison
Select Size
$99.00
Pairs well with..
The Slumber Cloud Performance Pillow Cover made with Outlast® temperature regulation technology and Tencel to help you stay cool through the night.
From $59.00
Performance Pillow Covers

- Premium NASA-engineered Outlast® fabric on both sides fights off heat

- Two removable inserts, one memory foam and one fiberfill, for customizable support

- Zippered side gussets allow for more control over the firmness of your pillow

- OEKO-TEX® STANDARD 100 Certified Technology. Certification Number: SH025 151577

- 100% polyester knit outer cover with Outlast® Technology coating

- Removable 100% down-alternative polyester fiberfill insert

- Removable 100% polyurethane memory foam insert

Standard - 20” x 26”
King - 20” x 36”

Basic Care:
Remove foam insert before washing. Machine wash cold water on a gentle cycle with a mild detergent, and with like colors only. For best results use a front load washer. Only use non-chlorine bleach when needed. Tumble dry low heat until completely dry. Remove from dryer immediately and fluff after drying. Do not iron.

Pro Tip:
You should wash your pillow 2-4 times a year. For best results use a front load washer. When drying, use wool dryer balls to reduce dry time and improve fluffing.

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!

*Final Sale items and colors are not eligible for return, exchange, or the 60 Night Trial Period.

Adjustable UltraCool Pillow
On Sale from $99.00

Why You'll Love It:

Sleep is personal. We think your pillow should be too.

Perfect Comfort. Personalized By You

Zip. Unzip. Remove. Reverse. Adjust. With over 60 comfort combinations, you can fine-tune the height and firmness to fit your specific sleep style.

Award Winning Cooling

The Adjustable UltraCool Pillow stays cool with Outlast® technology, adjusting to your temperature for a comfortable night's sleep.

Versatile Design

The Adjustable UltraCool Pillow has two inserts: luxury down alternative fiber-fill on one side and premium memory foam on the other for personalized comfort.

Slumber Cloud Pillow & Cover Comparison

Different solutions all designed with temperature regulation:
UltraCool Pillow

Cool to the touch. Adaptive.
Core Pillow

Cooling cotton. Structured. Classic.

Performance Pillow Cover

Zips on to pillow. Airy + breathable. Dual technologies
Detailed view of the outer fabric on the Slumber Cloud UltraCool Pillow
A close up shot of the Slumber Cloud Core Down Alternative Pillow
A close up of the Slumber Cloud Performance Pillow Cover Set made with Outlast temperature regulation technology on a moisture wicking fabric

Pillow Filling Overview

Pick your filling based on your typical sleeping position

Adjustable

Only available in our UltraCool fabric, the adjustable pillow offers customizable firmness with two inserts and zippered gussets, blending squishy fiberfill with supportive memory foam for cool comfort all night.

Fiberfill

The soft-medium or medium-firm down alternative fiberfill pillow offers the perfect support for those that prefer to traditional pillow feel.

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

"The slumber cloud adjustable pillow is far superior. It’s cool, supportive and adjustable. I’m thrilled with this new pillow"

- Beth R.

"I am very picky with my pillows and this may be the best pillow I've ever slept on! It stays cool and isn't too hard or soft. I don't know how else to describe it but to say it is PERFECT."

- Ryan H.

"Love the feel of this pillow. The memory foam is not hot or overly stiff like some others. It gives just enough significance to the pillow side that it does not flatten when sleeping on that side. Has a good weight to it and stays put during the night"

- Lacey G.

FAQs

Side, back, and stomach sleepers can rejoice. With zippered side gussets that change the firmness and two separate removable inserts, this pillow should work for all sleepers no matter what your go to sleeping position is. Here are our recommendations depending on your sleeping position.

For back sleepers: Use both the memory foam and fiber fill insert, on whichever side you like best, and keep the gussets zippered
For side sleepers: Use both both the memory foam and fiber fill insert, on whichever side you like best, but unzip one or both of the gussets
For stomach sleepers: Take out either the memory foam or fiber fill insert and unzip the gussets

Yes, we want your bed to look nice and match the rest of your linens so we made sure the technology inside our pillows will still work even when used with a pillowcase.

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.

True to its name, the UltraCool pillow is going to be the "cooler" of the two pillow options. Although you will still get great temperature control with the Core Pillow, this is designed more for sleepers who would prefer a traditional pillow with a modern temperature-regulation technology added in.