The Premium Foam Crib and Toddler Bed Mattress is made of high-quality breathable foam with a water-resistant lining to keep your little one clean, dry, and snug. You can sleep soundly knowing your child’s mattress is made with antistatic and antimicrobial materials and is free of phthalates and lead. The Premium Foam Crib and Toddler Bed Mattress comes compressed into a lightweight, eco-friendly box. Once it’s removed from its protective packaging, the mattress will expand to fit any standard/full-size crib and toddler bed. It includes a 6-year limited manufacturer’s warranty.