Read all labels and owner's manuals. Make sure everything is in proper working condition. Send in warranty cards for new items so you will be notified in the event of a recall. If someone gives you their used crib, playpen or other baby items, check to be sure they have not been recalled by the manufacturer. Some older cribs and play equipment may not meet current safety standards.
Babies can strangle if their clothes get caught on corner posts.
Make sure the mattress fits snugly into the crib. A baby can suffocate in even a small gap. If you can fit two fingers between the mattress and crib, replace the mattress. Keep the crib away from dangling drapery or blind cords, lamps and wall hangings that could be within baby's reach. Do not put pillows, comforters or stuffed animals in cribs or playpens, or anything else that could cover the nose and mouth of an infant.