Choosing Safe Baby Items: Cribs Whether you choose a fresh crib or a hand-me-down, check it carefully to make certain that your baby’s sleep space is safe. What to look for: Fixed side rails: Side rails ought to be fixed, not adjustable. The U sulbutiamine buy .S. Consumer Product Security Commission banned the sale of adjustable side rails for safety reasons. Usually do not buy or accept a used crib with an adjustable aspect rail. Proper slat distance: The distance between slats must be no more than 2-3/8 inches to protect infants from falling out in clumps and toddlers from trapping their heads between the slats. Obtain the firmest mattress you will discover. Don’t rely on manufacturers’ labels — test it yourself by pushing on the center and almost all sides of the mattress firmly.