Our top priority is the safety of your baby, with non-toxic construction and a 24 - 72 hour expansion time. The mattress is ideal for infants and toddlers with a sustainably sourced firm fiber core. It is also waterproof for easy cleaning and has safety certifications. Additionally, it comes with a limited 7 year warranty and is made in the USA, with a lightweight design and square corners for a secure fit inside the crib or toddler bed.