American Baby Company Waterproof Fitted Crib and Toddler Protective Mattress Pad Cover, White Editorial Review: The waterproof crib and toddler protective pad has a top and bottom layer made of soft polyester material with a 100% waterproof vinyl middle layer. The pad is quilted for baby's ultimate comfort and provides protection of the mattress and bedding. The fitted pad measures 28 inches in width x 52 inches in length x 9 inches in height and fits standard size crib and toddler mattresses. With elastic all around that fits the mattress snuggly and securely. Machine washable, tumble dry low for best results.