There’s not an exact time that we can recommend, as all babies are unique and it will depend on how tired baby was, how much sleep they got that day, etc. Ou recommendation is to be sure baby falls fully asleep. You can also try working on your bedtime routine if baby is waking up fussy—white noise and dim the lights 20 min before bedtime. bath time, etc.
This is considered a ‘cry’ method of sleep training. This technique entails allowing your baby to cry while checking on him at intervals. The goal here is to reassure him every so often that you are nearby and to reassure yourself that he is okay. When you go to check on your baby, you are not “supposed” to pick him up nor engage him much, but simply reassure him using your voice and a loving pat for 2-3 minutes, tops (watch the clock!). With this sleep training method, the goal is NOT to help baby fall asleep – that is what he is learning to do on his own! Instead, the idea is that he falls asleep on his own, in the same “environment” in which he will awaken periodically throughout the night. The knowledge of how to fall asleep unassisted at bedtime will pave the way for him/her to go BACK to sleep throughout the night. Over time, you gradually increase the amount of time between your ‘checks’. See a more detailed step-by-step explanation of this method here: The Ferber Method
Sears emphasizes a nurturing, child-centered approach to sleep and warns parents to be wary of one-size-fits-all sleep training. He recommends patiently helping your baby learn to sleep in his own time. He encourages co-sleeping, rocking and nursing your baby to sleep, and other forms of physical closeness to create positive sleep associations now and healthy sleep habits down the road.
“You’ll never sleep again.” Sound familiar? There’s a reason this cliche is often repeated at baby showers: In those first few months of parenting, before baby has an established sleep-wake cycle and needs to be fed only every few hours, sleep is fractured and confusing, with a long stretch just as likely to occur midafternoon as it is in the middle of the night. And that’s normal. But once baby is a few months old—after she’s dropped those middle-of-the-night feedings and has established a somewhat predictable sleep-wake cycle—sleep training her can help your whole family get some much-needed nighttime shut-eye. Here, what you need to know before choosing the best sleep-training method for your family.
Healthy sleep is so important for your baby AND you! If your baby isn’t sleeping, chances are you aren’t either. Sleep deprivation in children has been linked to obesity, behavioral problems, learning issues, and more later on in life. Sleep deprivation in adults can lead to similar issues, and has even been shown to play a role in Postpartum Anxiety and even depression in parents. Teaching and establishing healthy sleep habits right from the start will make sleep training easier and, more importantly, help keep you and your baby well-rested!
Parents are often hesitant to go this route, worried about how much crying will be involved. While McGinn doesn’t deny it can be difficult at first, she finds parents are often surprised by how quickly it works. “Yes, there is a lot of crying, but it’s short term,” she says. “You might get a lot of crying for two to three nights, but then every night is less and less.” She says you should see significant improvement with this method by night three or four but adds that it’s important to try it for a week before determining that it’s not working.
The age of your baby might determine what kind of sleep-training method you choose, though. You could try a gentle shush-pat technique with a five-month-old, but you’ll likely have to leave a one-year-old in the crib as they protest (cry or scream) about the new bedtime arrangement. Don’t attempt a formal sleep-training method before four months, until your baby is able to go longer in between feeds and their circadian rhythm starts to develop. (Many babies this age still feed in the night—contrary to popular thinking, sleep training isn’t synonymous with night weaning.) Dickinson says that many four-month-old babies are biologically able to go through the night without a feed, but that doesn’t mean you shouldn’t respond and feed them if other methods of calming them aren’t working. Since every situation is different, we recommend checking with your doctor before withholding your baby’s night-time feeds.