The Sealy Ortho Rest Crib and Toddler Mattress offers the support your infant needs. With a durability-tested innerspring coil system and GreenGuard Gold air quality testing, you can feel secure knowing your little princess is sleeping cozy on this mattress. More babies sleep on a Sealy than any other brand in the USA. Sealy proudly supports infants and toddlers with industry-leading crib mattresses known for safety, quality, comfort and premium support.