Contour 3-in-1 Massage Pillow Memory Foam Ideal for mothers-to-be or any side sleeper, it supports and aligns your body to help relieve lower back pain, relax muscles and reduce pressure on hips, knees and joints. Massage function relaxes muscles in calves, heels or thighs 20-1/2" x 7-3/8" x 3-3/4" Velvet cover Battery operated