Your little one will sleep soundly on this Dream On Me Star Light Crib Mattress, which has 202 heat-tempered, innerspring coils, waterproof cover with a lock-stitched binding that resists stains, mildew, and moisture for a healthy sleeping surface. The thick-gauge perimeter border wire gives stability right up to the mattress edge to meet the unique demands of infancy and toddler stage. This Dream On Me Mattress meets Federal Flammability Standard 16 CFR 1633 and GREENGUARD Gold Certified for a healthy indoor environment for your baby. Proudly constructed with quality materials and workmanship in the USA.