*Returns not accepted on any opened, used, or defective product. Contact manufacturer customer service directly for defective products/parts. From Lullaby Earth, this mattress features: The Lullaby Earth Breeze Air Crib Mattress consists of a non-toxic waterproof mattress and a removable washable, waterproof, breathable pad. It is non-toxic, waterproof, hygienic, with proper support, giving you everything you need for your baby's safe sleep. The dual-firmness design flips from a firm infant side to a cushion firm toddler side. The breathable pad provides an airflow layer between the baby and the mattress and enhances breathability when the baby is face down.  Breathable layer between the baby and the mattress Breathable layer is waterproof and removable Full breathability with full hygiene Easy to clean non-toxic food-grade waterproof surface No harmful chemicals and no flame retardants No toxic chemical odors/smells  2 stage design -- firm infant side / cushion firm toddler side Seamless edges - easy to wipe clean Lightweight for easy sheet changing Proper support for infants Extra firm edge support for jumping toddlers  Made Safe Certified GREENGUARD Gold Certified UL Formaldehyde Free Verified  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.  Dimensions: 27 1/4" x 51 5/8" x 6" Mattress Made in U.S.A. Breathable Cover Sewn and Finished in the U.S.A. with Imported Fabric Lullaby Earth Breeze Air Breathable Crib Mattress 2-Stage