Memory Foam Forms to your body and help your body actually relax. When you lie on memory foam, however there is no air left in the cells to push back and cause discomfort, the foam molds itself to the contours of the body, providing excellent support at the pressure points along the spine, neck, legs and elsewhere. This makes it possible to avoid some of the stresses on the skeletal and muscle systems of the body that are incurred during sleep on any other type of surface.