NASA temperature regulation technology: Maintains a comfortable temperature throughout the night for uninterrupted sleep
Phase change material: Absorbs and releases heat to keep you cool and dry
Premium fabric and polysilk down alternative fiberfill: Provides a soft, medium, or firm feel for personalized comfort
Available in multiple sizes and firmness levels: Fits a variety of bed types and preferences
Durable polyester cover: Ensures long-lasting use and easy care
Summarized by Shop
The UltraCool Pillow by Slumber Cloud leverages Outlast phase change material to keep a comfortable temperature all night long. The pillow is offered in standard or king sizes, with two firmness levels to choose from.
Available Sizes
Standard, King
Firmness Levels
Soft, Medium, Firm
Cover Material
Polyester
Cover Color
Blue
Cover Pattern
Solid
Summarized by Shop
3.3
4 ratings
5
4
3
2
1
Good Pillow, but would benefir with more adjsutments
A very good pillow overall, but would b much better with variable firmness level. Its a bit too high, would be perfect if have adjustable firmness, so inside material could be removed. to match the needs. I got firm since I am a side sleeper, but a little high for me. A small adjustment capability would make it perfect!
M
Michael · May 4, 2026
Not bad
This is a nice pillow. I wish I had ordered the softer one and I may reorder.