Help transition your little sleeper into a big kid bed with this soft, colorful, and waterproof memory foam mattress. Featuring 1-inch of gel-infused memory foam and 5-inches of dense support foam to help create a cooler and more comfortable experience for lightweight sleepers. Wrapped in a colorful and waterproof cover, this mattress is protected from spills, accidents, and even features rubberized nonslip backing to ensure the mattress stays in place. Size: Twin XL. Color: Blue.