Foster healthy sleep for your baby with the Pure Core crib mattress. The DRY cover protects the mattress from accidents with a non-vinyl waterproof backing and features a soft cotton face for baby's comfort. A dual‑sided design delivers firm support for infants and a softer layer for toddler years, ensuring long‑lasting usability. For your peace of mind, all Babyletto mattresses are GREENGUARD Gold Certified, hypoallergenic, and free from chemical flame retardants.