✔️ 100% Premium High-Density Memory Foam ✔️【New Type of Pillow】- Ecosafeter designed this pillow according to recommendations from sleep experts. Help everyone relax the cervical spine and bring deep sleep. This design is to help everyone have a wonderful night. ✔️【Contour Unique Design】- Medium firm feel, suitable for back, side and stomach sleepers, put your head and neck in an natural position. The height of the pillow changes with the personal sleep position, head size/wt, overall body size/weight, shoulder width (side sleep), keeping it at the most comfortable level. Sleeping in perfect alignment, you'll breathe better. ✔️【Premium Memory Foam】- cervical pillow is made of high-density slow-rebound memory foam that retains its shape and firmness with long-term use. This will provide solid support for sleep ,delivering amazing comfort and softness. ✔️【Breathable Inner & Outer Cover】- This pillow has a special breathable inner cover, which more effectively extends the service life of the memory foam core. The outer cover removable, washable and breathable. It is machine washable, so you can always keep it clean and smelling fresh. All material is non-chemical for better health. Do not wash the memory foam core. ✔️【Safe & Healthy】- Ecosafeter pillow provides a natural protective barrier. A breathable surface lets air circulate to keep the pillow cool while you sleep. In case you experience an odor which is a "Fresh Foam" odor, it is not harmful. The odor should dissipate several days later after the pillow is unpacked and aired out.