While sleep training may be OK for some older babies, it's not a good idea for newborns and younger babies.
While sleep training may be OK for some older babies, it's not a good idea for newborns and younger babies. Jennifer Waldburger, L.C.S.W., co-owner of Los Angeles-based Sleepy Planet and author of the book and DVD The Sleepeasy Solution, suggests that when babies are about 5 months old, it's safer to experiment with sleep training methods like letting your baby cry a bit at night (maybe for three to five minutes at a time).