High quality dual firmness infant / toddler innerspring crib mattress. It fits all standard size cribs and toddler beds. Firm support from high quality spring unit with 135 thick 13.5 gauge coils. It has an extra edge support and long lasting durability from thick 9.0 gauge steel border rods. This assures comfort and durability from natural and renewable coir fiber insulator pad made from coconut shell husks and all natural latex. Extra comfort from two cushioning layers of natural cotton batting and flat hypoallergenic foam on the firmer side and convoluted eggcrate type foam on the less firm side.