WAKE UP PAIN-FREEThe ergonomically designed memory foam cushion fits comfortably between your legs. providing ideal alignment and providing relief to the spine. hips. knees and back. The knee cushion helps with sciatica. back and knee pain. hip pain and joint pain. The cushion also supports your body during pregnancy. STAYS IN POSITION ALL NIGHTThe elastic strap. ergonomic design and memory foam ensure that the knee cushion stays in place all night long. night. It improves blood circulation and prevents pain and ailments of all kinds. A must-have for side sleepers! WASHABLE COVERThe soft. breathable zippered cover is machine washable. for easy cleaning. WORTHY OF EXPERT TRUSTEDRecommended by physical therapists. doctors. athletic trainers and chiropractors. Use the soft but firm cushion between the legs after surgery for your comfort in bed. This soft. lightweight and comfortable orthopedic memory foam cushion will not disappoint you.