The Sealy Butterfly Crib and Toddler Mattress collection is made with CERTIPUR-US® Certified foams that are firm, supportive and non-toxic for babies. Plus, you can have confidence in the quality, workmanship, and safety testing of our locally-made foam that is engineered for lasting firmness and durability. Packaged in a small box and delivered compressed and rolled inside. It immediately "butterflies" out to take shape into a full standard size crib mattress for a snug fit inside cribs and toddler beds. The Sealy Butterfly 2-Stage Antibacterial Ultra Firm Crib Mattress offers a grow-with-me design, made with a high-density foam side and a comforting soybean memory foam side. Our foam is marked with the infant side for families using it during the newborn stage. This model has a hospital-grade STAPH-GARD® laminate cover lab-tested to help eliminate harmful bacteria from spreading on the baby’s surface. It is gentle on babies but harsh on bacteria. The surface is entirely waterproof and wiped clean with a damp cloth.