Memory foam remembers the curve and shape of your neck and head (and even your knees!) for maximum comfort and a good night"s rest. Memory foam pillow is contoured specifically to ease pressure points and painmolding to your body allowing for ideal relaxation in your natural position. Comfortable pillows are temperature sensitive, which means they stay cool even when you get warm at night. Made of Visco-Elastic foam with muslin foam barrier cloth. Includes removable, machine-washable, velour zippered cover. Medium fill density. 12"L x 19"W. Lifetime limited warranty.