For parents preferring a foam crib mattress to an innerspring this mattress may be right for you. The Supreme II mattress is made with a 1.2/40 foam. It has a five-inch thick polyurethane foam core with a firm, white double laminated reinforced vinyl cover. The mattress wipes clean with a warm moist cloth and mild soap. Fits standard baby cribs and toddler beds. 1 Year Warranty