The Sealy Perfect Rest Infant Crib Mattress and Toddler Bed Mattress offers a popular solution for families looking for an extra firm, yet comfortable baby mattress. 150 resilient coils flex under baby’s body weight and the steel edging creates full perimeter support – similar to premium adult mattresses – while airy cushioning that is air quality and chemically tested does not put excessive pressure on baby’s growing body or feel “too hard.” Instead, balanced support and comfort are delivered with thick cushioning for infancy through toddlerhood. This baby bed mattress also includes a must-have waterproof cover that encases the support and comfort layers. The cover is also durable, and stain-resistant, and wipes clean easily from baby’s leaks.