The Waterproof Support Mattress is the ultimate in comfort for your baby, helping them sleep peacefully and soundly anytime and in any season. Coupled with a supportive pressure relief foam, our mattress is manufactured using fabrics that are hypo-allergenic, pH balanced and toxin free, a super-efficient, anti-fungal and anti-mite barrier, ideal for babies and children with asthma and allergies. The mattress, rotatable and flappable, has a thermoplastic protective waterproof cover, which can be cleansed using a mild detergent and allowed to dry between uses.