Material Our contour pillows are crafted from memory foam, also known as slow rebound foam. This material effectively absorbs body pressure and gradually conforms to your shape, helping to relieve lumbar pressure for improved comfort. Quality construction Made with quality memory foam for longevity. The pillow features rounded and flat sides, along with a soft, smooth, and breathable pillowcase. It is fully movable and machine washable for easy care. Pillowcase fabric Constructed from polyester jacquard velvet, the pillowcase offers moisturewicking properties and a soft, skinfriendly, breathable touch. The invisible strip design protects the zipper, enhancing durability. Ergonomic design Designed to follow the natural curvature of the cervical spine to promote a healthy neck posture. With varying heights on each side, it accommodates different sleeping habits and provides support. Use scenarios Nighttime use for back sleepers who need neck and lumbar support to maintain proper alignment. Side sleepers who benefit from the higher side to fill the gap between the neck and shoulder, promoting alignment and reducing strain. Resting or reading in bed to support the head and neck while lounging, helping maintain comfort and posture.