Specially constructed with individually wrapped springs and Memory Foam for gentle support and comfort, our Supreme Crib Mattress is the perfect foundation for a sound, restful sleep. 51 5/8" x 27 1/4" x no more than 6" tall 2 in 1 Design: The infant side (blue vinyl) provides a supportive sleeping surface while the toddler side (white vinyl) features a layer of convoluted foam designed to provide a combination of comfort and support for active toddlers. Features 231 extra-firm Pocketed Coil(R) springs, individually wrapped to provide firm support. Outer edges have a continuous border wire made of tempered steel for balanced support. Luxurious imported (from Belgium) woven fabric cover is easy to clean, hypo-allergenic and is water resistant. AllerCare (TM) technology helps to keep mattress clean, prevents unpleasant odors and inhibits the growth of dust mites Finished with reinforced seams for durability. <{{link path='/popup/customer-service/misc/greenguard.html ' class='popup' width='790' height='241'}} GREENGUARD certified{{/link}} CertiPUR-US