UltraCool Pillow

Prepare for a refreshing and cozy night's sleep with the UltraCool Pillow, hailed as the "Best Cooling Pillow" by Good Housekeeping. This revolutionary pillow features the same cutting-edge temperature-regulating technology utilized in our bedding, ensuring that both sides of the pillow remain cool all night long. The pillow is crafted from premium fabric that was initially developed for NASA and filled with Polysilk™ down-alternative fiberfill to create a comfortable and supportive surface for your head. With the UltraCool Pillow, you can relish in the ultimate sleeping sensation.

- 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

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

- 100% down-alternative polyester fiberfill

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.

Pro Tip:
Wash this every 2-4 times a year. Keep your pillows fluffy by drying your pillow with tennis balls or dryer balls.

Standard - 20” x 26”
King - 20” x 36”

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!

Why You'll Love It:

No more flipping to the cool side.
Cutting-Edge Cooling

The UltraCool Pillow removes an extra layer of fabric to put you in direct contact with Outlast® technology for better performance and puts an end to flipping to the cool side.

Neck Support

With two firmnesses, Soft/Medium and Medium/Firm, you can choose which support is best for your sleeping style.

- Stomach Sleepers: Soft/Medium
- Side Sleepers: Medium/Firm
- Back Sleepers: Medium/Firm

Lab Tested & Award Winning Quality

The UltraCool Pillow fabric has been lab tested for quality you can count on, with the fabric having 20,000+ passes in abrasion testing.

A woman smiling on a couch holding the Slumber Cloud UltraCool Pillow
Neck Support
Lab Tested & Award Winning Quality

Why It's Different

Most companies that claim to have cooling, sweat-wicking bedding only attempt to manage temperature once you've already become uncomfortable. Slumber Cloud is doing something different.

Slumber Cloud Bedding utilizes Outlast® technology for a proactive, not reactive, approach to temperature regulation. Outlast® technology regulates heat to stop moisture from developing in the first place, instead of attempting to wick away sweat that has already developed.

Not too hot…not too cool…just right.


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.

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.