Foundations Infapure 4” Foam Compact Crib Mattress (6444012) offers a dense foam that provides the ultimate in support and comfort. Infapure mattresses also feature a nylon reinforced, ultra-durable vinyl cover that is water resistant and easy to clean. The edges are bound and stitched to prevent moisture from passing through. Antimicrobial vinyl provides superior hygiene. Mattress is hypoallergenic and phthalate free. Infapure mattresses meets or exceeds all federal flammability standards without added chemical flame retardants, such as tris, to provide clean, quality air for baby. Item 6444012 is a 4” thick, compact size, foam mattress which fits Foundations 11 series and 13 series compact cribs. Naturally Safe, lab tested, no harmful chemicals. Individual mattress measures 38” L X 24” W X 4” D. Individual shipping weight per mattress is 7 lbs. NOTE: This is a COMPACT Mattress that fits Compact cribs. This mattress will NOT fit a full size crib.