Product details:

With a high coil count for firmness and airy foam later for support, this crib mattress offers you little one a peaceful night's rest. 2-Stage spring less design: firmer infant side & softer toddler side 204-heavy gauge steel coils for premium firmness & long-lasting durability Light, airy foam layer flexes under baby's body weight & contours to baby's body for comfort & support Anti-sag weight distribution system keeps the infant support throughout the mattress surface All around border rods maximize side, corner, & edge firmness Soft cotton, PVC-free cover is breathable & comfortable on baby's skin Waterproof barrier lining to help prevent liquids from seeping inside the mattress for a more sanitary sleeping surface 5.8H x 27.3W x 51.6D Maximum weight capacity: 60 lbs.