Colgate extra comfortable 3" thick Portable Crib / Mini Crib Mattress. Fits standard size portable cribs and mini cribs. Extra durable, tear resistant, Day Care tough, double layer tear resistant laminated, reinforced, waterproof, easy clean white cover. Mattress is made with CertiPUR US perofrmance certified foam and is Greenguard certified to have no harmful air emissions. Easy clean with damp cloth and mild soap. Mattress can be used on either side unlike lower quality mattresses. Mattress size: 24.0"W X 38.5"L X 3.0"H. 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.