Material: Made of high quality COTTON, soft and comfortable, breathable and waterproof, skin-friendly and no stimulation for your baby. Wedge design: Baby can get comfortable sleep with the wedege design. And the anti-slip bottom grips keep the newborn baby wedge pillow firmly in place and prevents baby from sliding down or rolling, for parents peace of mind. Function: The baby sleep pillow wedge id designed t improve babys sleep and to help reduce spit-ups, acid reflux, and reduce nasal congestion while aiding in comfort, difestion and gas relef. Waterproof: The composition is made f polymer waterproof and breathable material t make the baby dry and moderate. And it is easy to clean with warm water and soap. Invisible zipper: The invisible design is easy to remove and wash. The side zipper deisgn, the jacket can be frequently removed and washed to masin a dry and comfortable sleeping environment. Package included: 1x Memory Pillow