The Colgate EcoClassica III is from the Colgate Cradletyme Naturals collection of eco-friendlier crib mattresses, pads, and accessories. The EcoClssica III is a high quality, lightweight (9.6 lb.) , 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.