Slumber Cloud
Adjustable UltraCool Pillow
Best customizable comfort for hot sleepers.
Experience personalized comfort with the Adjustable UltraCool Pillow. This pillow features two removable inserts—memory foam and fiberfill—allowing for over 60 unique firmness and height combinations. Its Outlast® fabric, engineered by NASA, actively manages heat and moisture for a consistently cool sleep. Zippered side gussets offer further customization to perfectly match your preferred sleeping style. Certified by OEKO-TEX® STANDARD 100, it ensures safety and quality for a restful night's sleep, suitable for all sleeping positions.
$103.20
Owner Satisfaction
4.5
/ 5
Category Rank
456
/ 1778
#456 in Pillows
Price vs Category Average
-20%
Below average
Cover Material
100
/ % polyester knit with Outlast® PCM coating
Who it's for
- Sleepers desiring tailored support for ultimate comfort.
- Hot sleepers and individuals prone to night sweats.
- People with varied sleep styles or those sharing a bed.
Who should skip it
- Budget-conscious consumers seeking more affordable bedding solutions.
- Individuals preferring immediate, ready-to-use comfort without adjustments.
- Users who prefer very soft, pliable, and less structured pillows.
Key Specs
Cover Material
100% polyester knit with Outlast® PCM coating
Fill Material
Memory foam and polyester fiberfill
Certifications
OEKO-TEX® STANDARD 100
Size
Standard (20” x 26”), King (20” x 36”)
Machine Washable
Yes
Adjustable Loft
Yes
Cooling Features
NASA Cooling Technology, Outlast® fabric
Pack Quantity
1
Features
- Over 60 personalized comfort combinations
- NASA-engineered Outlast® fabric for advanced cooling
- Dual-insert design for adjustable firmness
- Zippered side gussets for loft control
- OEKO-TEX® STANDARD 100 Certified for safety
- Suitable for all sleeping positions
- Machine washable cover for easy care
- Made in the USA
What customers say
Customers consistently praise this pillow for its exceptional cooling properties and customizable comfort. Many hot sleepers find significant relief from overheating, attributing improved sleep quality to its temperature regulating design. The adjustable fill allows users to personalize loft and firmness, providing tailored support that alleviates neck discomfort for various sleeping positions. This combination of effective cooling and personalized comfort makes it a highly regarded choice for those seeking a truly restorative sleep experience.
Know before you buy
The pillow includes two distinct inserts—one memory foam and one down-alternative fiberfill. You can use them individually or together, and adjust the zippered side gussets to customize the loft and firmness to your exact preference.
Yes, the cover is treated with NASA-engineered Outlast® phase change material. This technology proactively absorbs and releases heat to regulate your temperature, rather than just wicking away moisture.
Absolutely. Because you can adjust the height and firmness by removing or rearranging the internal inserts, you can tailor the pillow to support multiple sleeping positions.
Yes, the entire pillow is machine washable. We recommend following the care instructions on the label to maintain the integrity of the cooling fabric and the internal fills.
This certification ensures that every component of the pillow, from the fabric to the fill, has been tested for harmful substances. It guarantees that the product is safe for human health and free from toxic chemicals.
By mixing the memory foam and fiberfill inserts and adjusting the zippered gussets, you can achieve over 60 different combinations of height and firmness.
Still have a question?
Ask Hayley anything about this product before you decide.