"The Colgate Eco-Classica III is from the Colgate Cradletyme Naturals collection of eco-friendlier crib mattresses, pads, and accessories. The Eco-Classica III is a high quality, lightweight, orthopedic style dual firmness infant/toddler foam crib mattress. The firmer supportive infant side is very firm. The less firm, more comfortable toddler side is also firm to support toddler bodies but, less firm than the infant side. An overall 6"" mattress thickness means tight fitting sheets. Inverted seams provide for a sleek appearance. All foam in this mattress is CertiPUR-US certified to be safe, high quality foam. All foams are also eco-friendlier because they are made with (non-food) plant oils replacing petroleum based oils. The Colgate Eco-Classica III 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 in the USA. Size: Standard Crib. Gender: unisex."