Serta Sertapedic Moongaze Crib and Toddler Mattress delivers the comfort your baby deserves and the support they need to get a restful nights sleep. Featuring a thermo-bonded fiber polyester core for the firmness your baby needs this sturdy mattress is covered in a convenient waterproof vinyl cover for easy cleanup. Finished with square corners to help create a secure fit inside the crib its lightweight design makes changing the sheets less of a chore. Offering Serta s exceptional quality at an affordable price Sertapedic mattresses provide a secure foundation that will serve as your infant and toddler s sleep space for many years. All Serta crib mattresses are GREENGUARD Gold Certified and meet the strictest standards offered by the GREENGUARD Environmental Institute which recognizes products with low chemical emissions contributing to improved indoor air quality.