This pillow is scientifically proven to reduce temperature build up by up to 50%. Made from next generation memory foam the Cool Memory Comfort pillow not only has dozens of comfort perforations to boost breathability to the max, it also has an ultra cool touch cover on one side so you can always have the cool side of the pillow. Hot flush gone or colder nights ahead? Just flip it over for the non-cooling luxury side, whatever the weather this pillow is always just right. Proven to eliminate pressure points to reduce aches and pains this pillow truly is super cool and super comfy.