The exclusive internal padding and the “Miracle Middle Insert” guarantee that Boppy will keep its shape over time. Boppy is super-soft to the touch and has a special internal padding that supports the baby gently but firmly. The Boppy is machine washable and has a removable slip cover. Additional slip covers available separately. 0m+ Cozy Relaxing Nest – After feeding, Boppy can also be used to allow baby to relax in a comfortable, slightly raised position which reduces the change of regurgitation. 6m+ Nest to help baby crawl – Boppy helps babies lying on their tummies to develop co-ordination skills and strengthen the muscles when learing to crawl. 9m+Nest to Sit up In – Boppy will give baby confidence when learning to sit up.