The Colgate 2-N-1 is a high quality, reasonably priced dual firmness Infant Toddler innerspring crib mattress that fits both cribs and toddler beds. The extra firm side provides the support infants need. The less firm side provides the extra comfort that toddlers like. The best innerspring mattresses have more layers and high quality layers and the Colgate 2-N-1 has both - a spring unit with more steel and border rods for firmness and edge support, the best quality support (insulator) pad of coir fiber made from natural coconut shell husks, two comfortable and supportive cushioning layers on each side of the mattress - CertiPUR-US certifed foam that is safe, high quality, and non-allergenic and, natural cotton batting cushioning. The mattress cover is triple layered, reinforced, waterproof and, tear-resistant. Strong seams are provided by preferred cloth binding and, mattress freshness is assured by side vents. This mattress passes all federal and state requirements for flammability and chemical composition and has been GREENGUARD certified to have no harmful air emissions. Lastly, the mattress is made by Colgate, The Crib Mattress Specialist , who has been making mattresses and trusted by parents for over half a century.Standard size high quality orthopedic style innerspring crib mattress with dual firmness fits all standard size cribs and toddler beds GREENGUARD Children Schools CertifiedÂ…the toughest GREENGUARD standard and passes all standards for indoor air quality and more than 10,000 volatile organic compounds Firm support from high qualilty spring unit with 135 thick 13.5 gauge coils Extra edge support and long-lasting durability from thick 9.0 gauge steel border rods Assured comfort and durability from natural and renewable coir fiber support insulator pad made from coconut shell husks and all-natural latex Extra comfort from two cushioning layers on each mattress side - natural cotton batting and a flat hypoallergenic CertiPUR-US certified foam on the firmer side and, convoluted CertiPUR-US certified e