"No Tears" Techniques: Just as some parents and experts believe that it is harmless to allow an older baby to cry for set periods of time, others prefer sleep-training methods that gradually teach the baby to fall asleep without Mom or Dad’s help. For example, one "no tears" method involves sitting in a chair next to the crib while the baby falls asleep, and then, each night, moving the chair farther from the crib until it's in the doorway—and then, finally, outside the room.
Before you start any sleep-training method, make sure all the necessary people are on board. Talk to your pediatrician to rule out any underlying medical condition, such as reflux or GERD, sleep apnea, or allergies, that may be keeping your child awake at night. Then make sure you and your partner are on the same page; plan together how you'll react to wakings at given times. If your 10-month-old is nursing six times a night, both of you must agree that you'll feed him once before bed, then not again until morning.
If your baby is older than six months, don’t worry, McGinn says: “It’s never too late to develop good sleep habits.” Dickinson says he finds nine months to be a bit of a sweet spot for parents in terms of getting babies to sleep through the night. “They are at a good age for understanding routines and don’t need to eat during the night,” he explains.