Why are soft surfaces danngerous?
Well, because if an infant lays on soft bedding or soft surfaces (such as an adult bed or couch) that surface may indent or conform to the shape of the baby’s head and increase the likelihood that the infant will breathe in his/her own exhaled breath (carbon dioxide). These surfaces also increase the risk of suffocation if the baby would become face down in the mattress, couch, or another soft surface.
The only things that can go in the crib with your baby are:
A tight-fitted sheet that is manufactured for your infant’s sleep surface.
A pacifier with no pacifier attachments.
Instead of blankets, to keep your babies warm consider using a wearable blanket or sleeper onesie.
And of course, your baby!
There should never be anything soft in your baby’s crib. There should never be any pillows, blankets, stuffed animals, comforters, or bumper pads inside the sleep area or attached to the crib. These items increase the risk of suffocation when placed in your infant’s sleep area.