"A New Type of Pillow" This pillow was designed following the recommendations of sleep experts. It helps everyone relax their cervical spine and achieve deep sleep. This design helps everyone have a great night's sleep. "Environmental Protection of Inner and Outer Covers" Unlike other pillows, this pillow has a dust-proof and specially breathable inner cover, which more effectively extends the life of the memory foam core. The outer cover is removable, washable, and breathable, with a material composition of 40% bamboo and 60% polyester. The cover is machine washable, but do not machine wash the memory foam core. Store the pillow in a cool, dry place and avoid direct sunlight. "Unique Contour Design" The firmness of the pillow is medium. For back, side, and stomach sleepers, it keeps the head and neck in a natural position. This pillow is made of high-quality, high-density memory foam. The pillow height varies depending on sleeping position, head size/weight, body size/weight, and shoulder width (side sleeping), and is maintained at the most comfortable level. "Safe and Healthy" Unlike other traditional pillows, this pillow provides a protective barrier. If there is an odor, it is the smell of "fresh raw foam" and is harmless. The odor should disappear within a few days after removing the pillow from the package and drying it. Immediate purchase is welcome Other products can be found here: #Ottotto'sShop