Two-in-one design features a firm surface for infants on one side and a foam-cushioned surface on the other side for toddlers. Each side features a distinct design: The infant side is grey with wihite moons and stars; toddler side is white with grey moons and stars. Vinyl mattress surface is waterproof and easy to keep clean. Mattress edge has a reinforced border wire and Innofoam corner wraps. Toddler side has convoluted foam comfort layer.