From Lullaby Earth, this mattress features: The Lullaby Earth Breeze Air Mini Crib Mattress is non-toxic, waterproof, hygienic, with proper support, giving you everything you need for your baby's safe sleep. Consisting of a non-toxic waterproof mattress and a removable washable, waterproof, breathable pad. This mini crib mattress is designed to fit in the Babyletto Origami and Gelato mini cribs (3" x 37" x 23.9"). The breathable pad provides an airflow layer between the baby and the mattress and enhances. Please check dimensions with your crib before purchasing Breathable layer between the baby and the mattress Breathable layer is waterproof and removable for hygienic purposes Easy to clean non-toxic food-grade waterproof surface No harmful chemicals and no flame retardants No toxic chemical odors/smells Seamless edges - easy to wipe clean Lightweight for easy sheet changing Proper support for infants and extra firm edge support for jumping toddlers Made Safe Certified, GREENGUARD Gold Certified, UL Formaldehyde Free Verified This product contains no vinyl, phthalates, polyurethane foam, flame retardant chemicals or barriers, formaldehyde, pesticides, GMO's, glues/adhesives, etc Recommended by Zero Toxics Product Registry, Allergy Kids Foundation, Healthy Child Healthy World, Kids for Saving Earth, Green America, American Sustainable Business Council, Clean Production Action, and more. Fits Standard Size Mini Cribs Appx Dimensions: 23.5" x 37.5" x 3" Mattress Made in U.S.A. Breathable Cover Sewn and Finished in the U.S.A. with Imported Fabric.