The swaddle allows your baby to sleep in a more natural sleeping position.; It keeps your newborn baby's arms still and soothes their natural startle reflex while sleeping.; It has an ergonomic design that does not hinder leg movements.; It can be converted into a sleeveless sleeping bag by opening the snaps on the sides.; Usage: After placing your baby's legs and arms (arms at the sides) in the swaddle, carefully pull the zipper of the product up. When the baby reaches the month when it can turn over on its own (average 2 months), the snaps on the sides can be opened, the arms can be taken out and it can be used as a sleeping bag. ATTENTION !: When your baby reaches the month when it can turn over on its own, use the product as a sleeping bag. Keep the product away from fire.