Naturepedic baby crib mattresses feature a patented food-grade waterproof surface made from non-GMO sugarcane. A waterproof surface is the first step towards a healthy and hygienic sleep environment and is essential for preventing urine, spit-up and other messes from penetrating inside the mattress. Once inside, these fluids can wreak havoc, growing a garden of mold, bacteria and other microbials (we love gardens, but not this kind).
We even incorporate waterproofing in our popular breathable models to ensure the insides stay clean and sanitary. After all, mold and bacteria are the last things you want your baby breathing night after night.