ContourSleep Convertable Back WedgeThe ContourSleep Back Wedge lets you sit, recline or sleep while providing full support, relieving you from lower back pain, muscle spasms and other everyday discomforts. Use to sit upright while you read or watch TV, or lie back and experience the healthful benefits of the Zero Gravity position. Relieves spinal pressure and soothes muscle tension Zero Gravity position increases circulation to reduce stress on the heart Can be used to help alleviate