1.[Ergonomic Health Care Waist Pillow] - Uses low-elasticity bamboo charcoal memory foam, which perfectly fits the body, fills the gap between the waist and bed, supports the waist, and distributes the pressure evenly to reduce the burden on the lower back. Gently supporting the lower back can relax the muscles of the lower back and waist after childbirth. It is designed to help achieve an ideal posture and a perfect fit to the waist. 2.[Relieve Back Pain Due to Side Sleeping] - For side sleeper, the curves around the waist and lower back will be maintained well with the pillow of low repulsion force, thereby protecting the spinal cord and muscle from injury. The pillow helps keep a natural posture easily, especially for those who often turns over or cannot fall asleep unless lying on their side. 3.[Relieve Back Pain Due to Side Sleeping] - For side sleeper, the curves around the waist and lower back will be maintained well with the pillow of low repulsion force, thereby protecting the spinal cord and muscle from injury. The pillow helps keep a natural posture easily, especially for those who often turns over or cannot fall asleep unless lying on their side.