Regardless of the model you select, all Naturepedic crib mattresses are free from harmful chemicals including flame retardants, vinyl/PVC, polyurethane foam, phthalates, biocides, perfluorinated compounds (PFAS) and other questionable materials. They're also waterproof and easy-to-clean to help keep things hygienic and ensure your baby won't be breathing mold, bacteria or other microbial growth. Finally, they're 100% certified organic while avoiding the use of allergenic materials such as latex and wool. With Naturepedic, you won't have to compromise on health, safety or convenience!