The Sleepsia Half Moon Multipurpose Pillow for Lumbar Support may be used any way you choose! It serves as a spacer, a leg raiser, and a lumbar pillow. Place the cushion beneath the knees and lift the legs to cradle your lumber. It will give proper lumbar area alignment. The Sleepsia Half Moon Pillow may also be used to relieve back pain by placing it under the ankles and lifting the feet. You may also wear it beneath your waist for appropriate lower back support. It is suitable for both back and side sleepers, and it may also be used for lumbar support while sitting in a chair or on a couch.