Infants can sleep for up to 16 hours a day, which means maintaining a hygienic sleep space is essential. Made with cozy, waterproof, organic cotton fabric, this protector pad helps to prevent any mattress contamination from messes - because there will be messes! A 3-layer design blocks liquid from penetrating the waterproof layer while allowing water vapor to pass through, reducing Baby's sweat and clamminess for a cleaner, comfier sleep. Naturepedic baby essentials are made without flame retardants, harmful chemicals or potential allergens - Only Good Things.