I used to own a set similar to this and it did help improve my problems with comfort and posture. It did help with relaxation, too. My set lasted for a good decade before I finally had to retire it and I’m now looking for a replacement.

This adjustable bed wedge system is a total sleep and relaxation system. Sit upright or lie back and experience the Zero Gravity position. Reduce pressure on the spine, relieve muscle tension, increase circulation and reduce stress on the heart. The wedges have removable, washable terry fabric covers for soft, breathable comfort.

Via ContourSleep Adjustable, adjustable bed, bed wedge, Contoursleep, fabric, muscle tension, posture, relaxation system, sleep, tension increase, terry fabric, Zero, zero gravity