Constructed with a non-toxic, medical grade Nylon fabric cover and natural internal fire resistance barrier, this mattress is the best in its class. The Little Dreamer Mattress from Moonlight Slumber also offers: side stitched seams, medical grade all foam interior, waterproof and antimicrobial protection. This mattress offers a 5" deep profile. Features Include: ? Vinyl, Polyethylene and PVC Free ? Phthalates and Lead Free ? Non-toxic medical grade Nylon fabric cover ? Extra firm high density foam ? 161 count (twin)-13.5 gauge low profile steel innerspring ? Naturally inherent fire resistant barrier ? Fire safety standard 16 CFR part 1633 compliant ? Eco-friendly water based adhesive with Green Guard Certification ? Side stitched seams ? Waterproof, Hypoallergenic ? Treated with Ultra Fresh for antimicrobial protection ? Easily cleaned with damp sponge ? Lifetime warranty against manufacturer defects ? Made in the USA