West says once an infant is older than 3 or 4 months, habits like rocking, singing, or nursing her until she dozes off become "sleep crutches." "These are not negative or bad behaviors," says West, "but they become a problem when they're so closely linked in the child's mind with slumber that he cannot drift off without them." Continuing with these sleep crutches will mean every time your baby wakes up (multiple times throughout the night), she'll need you to rock, sing, or nurse her—but your goal is to teach her to self-soothe and put herself back to sleep.
This is a very gradual sleep-training method ( McGinn gives her clients a two-week plan for implementation) and requires a lot of discipline on the part of the parents. Again, you prep your baby for bed, but instead of leaving the room, you sit in a chair next to the crib. When they fall asleep, leave the room, but every time they wake up, sit back down in the chair until they fall back asleep. Every few nights, move the chair further and further away until you’re out of the room.
Thank you for your comment! We agree, and we think most parents do, that cry-it-out is a last resort, and we always recommend trying a gentle sleep coaching method first. That said, the research on cry-it-out is that, done correctly and not as a replacement for parenting your baby, it is not harmful, and can indeed be beneficial when you consider the damage that lack of sleep can do to a baby’s overall health and well-being. We have an article with further information about our philosophy on cry-it-out here: https://www.babysleepsite.com/sleep-training/cry-it-out-age/
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.