The Memory Foam Bed Wedge Pillow (includes pillow cover) has an outer layer of a high quality, durable visco elastic memory foam material that conforms to the body"s shape over a sturdy polyurethane foam core. * The memory foam layer of the pillow responds to the body"s temperature through the transfer of body heat, resulting in a pillow surface that is shaped like your body. * This pillow features curves on the surface of the pillow to help better contour to the shape of your body. * The pillow bed wedge comes with a cover that has a zipper closure for easy removing and washing.