Safety Material: The pillow core is made of memory foam. The surface is short-haired velvet. Very soft, breathable and more comfortable to absorb sweat. Scientific Stereotypes: Design of 3 sleeping areas. A hollow design in the middle allows breathable perspiration. Easily form a healthy head shape. Meet babies' needs with multiple sleeping positions. Can effectively prevent flat head. Washing Instructions: Do not wash with water. Exposure is strictly prohibited. Scrub gently, air dry. Why a stereotypical pillow is needed: After the baby is born, the bones behind the brain are not fully closed. The baby spends most of its time sleeping. The baby's skull is soft and easily deformed by external forces. So the babies need a shaped pillow. Service: If you have any questions, please feel free to contact us. We will answer your questions as soon as possible. : 1.Safety Material: The pillow core is made of memory foam. The surface is short-haired velvet. Very soft, breathable and more comfortable to absorb sweat. 2.Scientific Stereotypes: Design of 3 sleeping areas. A hollow design in the middle allows breathable perspiration. Easily form a healthy head shape. Meet babies' needs with multiple sleeping positions. Can effectively prevent flat head. 3.Washing instructions: Do not wash with water. Exposure is strictly prohibited. Scrub gently, air dry. 4.Why a stereotypical pillow is needed: After the baby is born, the bones behind the brain are not fully closed. The baby spends most of its time sleeping. The baby's skull is soft and easily deformed by external forces. So the babies need a shaped pillow. 5.Service: If you have any questions, please feel free to contact us. We will answer your questions as soon as possible.