Our four-layer cervical pillow features an innovative design with six adjustable heights to provide excellent support for a variety of sleep positions. Whether lying on your back, side or stomach, you can customize it by removing or rotating the pillow layers for ideal neck support and relief. This pillow is made with premium memory foam to provide stable and comfortable support for deep relaxation of the head, neck and shoulders. It also comes with a Premium Breathable Cooling Pillowcase made of premium fabrics that wicks away moisture and promotes circulation for a fresh feeling. The pillowcase is soft and durable, easily removable and machine washable to keep you cool every night, and the skin-friendly fabric is suitable for those who are prone to overheating or night sweats to ensure a restful night's sleep. If you are not satisfied with your purchase, the professional customer service team is always ready to help solve the problem. The hassle-free return policy allows you to enjoy quality sleep without worry. Choosing our cervical pillow is choosing comfort and peace of mind.