The Slumber Cloud Core Down Alternative Pillow with Outlast® temperature regulation technology to help keep you cool and comfortable throughout the night
A young child smiling and clutching a Slumber Cloud Core Down Alternative Pillow
The Slumber Cloud Core Down Alternative Pillow made with temperature regulation technology
A couple pillow fighting with Slumber Cloud Core Down Alternative Pillow
A man smiling and laying on a Slumber Cloud Core Down Alternative Pillow
A man putting a pillowcase over a Slumber Cloud Core Down Alternative Pillow
A close up shot of the Slumber Cloud Core Down Alternative Pillow
A close up shot of the Slumber Cloud Core Down Alternative Pillow

Core Down Alternative Pillow

Upgrade your sleep with our Core Down Alternative Pillow. Infused with NASA-engineered tech, it offers unmatched support and softness for ultimate comfort.

Hypoallergenic FillMade In USANASA Cooling Technology
Select Size
Select Firmness
$64.00

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

- Filled in the USA

- Two firmness levels for perfect neck support

- OEKO-TEX® STANDARD 100 Certified Technology. Certification Number: 05.0.9235

- 300 thread count, 100% cotton outer cover

- 100% polyester non-woven lining 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. 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:
Pillows should be washed 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.

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!

Pairs well with
The Slumber Cloud Core Pillow Covers with Outlast® temperature regulation technology to help keep you cool and comfortable throughout the night
From $49.00
Core Pillow Covers
Core Down Alternative Pillow
From $64.00

Why You'll Love It:

Thoughtful details, inside and out.

Filled With The Good Stuff

Our Polysilk™ down alternative fiberfill mimics down without heat buildup, offering advanced comfort without hassle.

Good Enough For NASA

Built with NASA-engineered material that absorbs, stores, and releases excess heat to regulate temperature for optimal comfort all night.

Supportive Sleep

Choose Soft/Medium or Medium/Firm firmness options tailored for stomach, side, or back sleepers, ensuring ideal support for every sleeping style.

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.

FAQ

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.

We highly recommend using a pillow cover with your pillow. A pillow cover will reduce the wash frequency of your pillow and improve the product lifetime.

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 Down Alternative Pillow, this is designed more for sleepers would prefer a traditional pillow with a modern temperature-regulation technology added in.