HIGH-QUALITY BIOBASED MATTRESS - Made from high-quality biobased foam certified by CertiPUR-US DUAL-SIDED DESIGN FOR COMFORT - Our mattress features a firmer side for infants and a soft memory foam side for toddlers for ultimate comfort and support as your baby grows BREATHABLE AND COMFORTABLE - The foam with ventilation holes and the side mesh of the mattress cover are designed to make the mattress more breathable and comfortable EASY TO CLEAN - Zipper mattress cover is easily removable and machine washable, while the waterproof lining effectively prevents bedwetting from becoming a cleaning problem STANDARD SIZE CRIB MATTRESS: Baby mattress dimensions are 52" x 27.5" x 5". Fits full-size cribs and toddler beds Babelio's newly upgraded biobased crib mattress brings comfort to your baby's healthy growth! Our toddler bed mattress with size of 52 x 27.5 x 5 inches that fits most standard size crib, convertible crib and toddler beds. Desigh with firm side and soft side that can be used in different periods of your baby. There are many ventilation holes on memory foam to make the mattress more breathable and fast rebound to original shape. The mattress cover are made of soft fabric, it's also breathable. The cover of crib mattress is removeable and designed a waterproof non-woven lining. When you accidentally soil or wet the mattress, just remove the mattress cover and clean it without worrying wetting the inside of the mattress. Specifications: Standard Crib Mattress Material: Memory foam & Firmer foam Feature: Removeable, Waterproof, Breathable, Washable, Duarable Certification: CertiPUR-US, USDA BioPreferred Dimensions: 52x27.5x5 inches Weight: 5.6KG Package Include: 1 x Baby crib mattresses