It makes use of a mixture of healing foam in its base and soft fiber in the middle for assist and comfort in any sleeping position. It affords aid to the natural curvature of the neck. It aligns the neck and Knee Pain backbone in a natural role. as it cradles and supports the head, it will nonetheless permit your head to rotate freely in any direction. The smooth fiber middle acts as a body which cradles your head while you sleep on your lower back. The therapeutic foam at the side gives additional help even as you sleep in your side.