The Sealy® Butterfly™ Waterproof Ultra Firm Crib and Toddler Bed Mattress is USA made. The American-made foam is CertiPUR-US Certified for top quality and does not contain toxic chemicals. The premium high-density foam-core is tested for safe use with newborns, infants and toddlers. This mattress measures 52" x 28" for a perfectly snug fit inside both standard-size cribs and toddler beds. It is lightweight which makes changing crib sheets and pads a breeze. The 100% waterproof cover material is easy to clean and wipes down with a damp cloth or soap and water. The reinforced stain and odor-resistant laminate cover zips on and off. The Sealy® Butterfly™ Waterproof Ultra Firm Crib and Toddler Mattress ships compressed and rolled in a small box for convenience. The safety-tested foam rolls out flat to snugly fit your baby’s crib. When searching for a high-grade foam crib mattress families trust Sealy, a leader in quality sleep and the best-selling crib mattress brand in the USA. Voted America’s Healthiest Crib Mattress Brand by parents, winning the 2020 Cribsie Award. Available in a variety of patterns and colors to complement your style, as well as single-stage and 2-stage grow-with-me designs. Sealy Butterfly Crib and Toddler Mattress: Ships Small. Butterflies Out. Fits Perfectly.