First-Time Activation: To fully activate the memory foam, please inflate the product using an air pump or by mouth upon its first use. Allow it to sit for 6 to 12 hours. After this initial activation, the pillow will automatically self-inflate for all future uses.

Self-inflating pillow. Open valves to inflate in minutes. Ergonomic design for better sleep. 

Material: 

polyester, oxford cloth, foam

Dimensions: see picture No.3

Weight: 350g