CottonRelieves Night Sweats, Hot Flashes, Back Aches, Sore Feet, Fever, Restless Legs, Sunburn, Migraines & moreGlove Leather soft exterior instantly cooling to skin ΓÇô no latex or hard nylon/polyesterCool Soft Memory Foam feel, not hard like gel products which heat up, feel hard, grow stiff over time and cannot disperse heat consistentlyLarge full pillow size,No electricity need.