Available only from Hammacher Schlemmer, this is the cooling memory foam pillow that relieves stress on the knees, hips, and back for those who sleep on their sides. The pillow’s ergonomic shape fits naturally between the knees, keeping them the ideal distance apart to preserve proper hip and spine alignment and alleviate tension and pain. The memory foam construction molds to the contours of your body for a custom fit, and an outer layer of gel stays comfortably cool throughout the night. Washable white 100% polyester cover. 9 3/4" L x 8" W x 6" D.