The Colgate Classica III is a high quality, lightweight - 8.5 lb, orthopedic style dual firmness Infant Toddler foam crib mattress. The firmer supportive infant side is very firm as most medical experts recommend for infants. The less firm, more comfortable toddler side is also firm but, a little less firm than the infant side. Square corners ensure a snug, safe fit in all standard American cribs and toddler beds. Mattress is 5 thick. The mattress cover is triple layered, reinforced, waterproof, tear-resistant and non-allergenic. Durability is assured with strong cloth binding and, mattress freshness is assured with a double row of eyelet vents. Mattress cleanup is easy with a damp cloth and mild soap. The foams in the Classica III are CertiPUR-US certified to be high quality and safe. 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 orthopedic style five inch thick dual firmness 8.5 lb. lightweight foam crib mattress fits all standard size cribs and toddler beds GREENGUARD Children Schools CertifiedÂ…the toughest GREENGUARD standard - passes all standards for indoor air quality and more than 10,000 volatile organic compounds Orthopedic style mattress Dual firmness offers very firm support for infants and greater comfort for toddlers Tear-resistant, waterproof, easy clean, triple layer reinforced cover Strong seams provided by cloth binding Fits all standard size American cribs and toddler bedsBatteries Required: No Color: White Country of Origin: USA Gender: Neutral Height: 5-1 4 Length: 51-5 8 Size: Crib Toddler Bed Weight (lbs.): 8.75 Width: 27-1 4