Delta Children's Sweet Bliss Crib and Toddler Mattress offers your baby or toddler support and comfort at a great price. Built with a firm polyester fiber core made from recycled materials, this sturdy mattress is has a durable waterproof cover for easy cleanup. Finished with square corners to help create a secure fit inside a crib or toddler bed, the Sweet Bliss Crib and Toddler Mattress is the ideal choice for your growing child.