This mattress is made from 100% recycled extra firm polyester core. This mattress is 2-in-1. The extra firm side is for infants and the medium firm side is for toddlers which is great for Toddlers beds. This mattress is phthalate free is washable and waterproof. It is lightweight and can be easily lifted when changing the sheets. This mattress comes with a 15 year manufacturer's warranty.