Dimensions: 38L x 24W x 4H in.Constructed of polyurethane foam and vinylPortable mattressFeatures interwoven steel coilsWaterproof cover includes lock-stitch ventingHypoallergenic and easily wipes clean with warm waterEnsures prevention of mold, mildew, and odorDesigned to fit a standard portable cribProduct weight: 5 lbs.Made in the USAMeets the 16 CFR 1632 /1633 Federal Flammability StandardsGREENGUARD Gold Certified for a healthy indoor environment for your baby. The Dream On Me 3 in. Spring Coil Mini/Portable Crib Mattress offers supreme comfort for your growing little one. This quality crib mattress is constructed of polyurethane foam, vinyl, and interwoven steel coils. Hypoallergenic, this mattress features an easily cleaned waterproof cover that ensures the prevention of mold, mildew, and odor.