Somewhere around month four or five, a well-meaning friend, a parenting book, or your own exhaustion introduces you to a whole vocabulary you never asked for: Ferber, extinction, chair method, fading. Everyone seems to have strong opinions about which one is right, and a few people seem to think choosing the "wrong" one might scar your child for life. It will not. Here is what these methods actually involve, and what the research really says about picking one, or skipping the whole decision entirely.
The Methods, Side by Side
Most approaches fall somewhere on a spectrum between "leave the room and let them work it out" and "stay close and slowly step back." None of them require ignoring a sick, hungry, or genuinely distressed baby.
- Graduated extinction (the Ferber method). You put your baby down awake, then check in at gradually longer intervals, offering brief, low-key reassurance without picking them up. Most families see real change within five to seven nights.
- The chair method (camping out). You sit in the room while your baby falls asleep, moving your chair a little farther from the crib every few nights until you are out the door. It is slower, often two to four weeks, but some parents find it easier to sit through.
- Bedtime fading. Instead of changing how you respond to crying, you shift bedtime itself, temporarily later, so your baby is sleepier and falls asleep faster, then gradually move it earlier once sleep is more solid.
- Full extinction ("cry it out"). You put your baby down and do not return until morning, aside from checking on their safety. It is the fastest method and the one most associated with guilt, even though the research does not support that guilt.
- No formal method. Plenty of families simply keep responding to every wake-up, sometimes for years, and their children turn out fine too. There is no prize for training early, and no penalty for not.
Does the Science Say One Is Better, or Safer?
The honest answer is that the differences between methods are smaller than the internet makes them sound. Studies comparing graduated extinction and bedtime fading both found meaningful improvements in infant sleep, and in parents' own sleep and mood, within a few months. The chair method tends to work a little more slowly, but some research has found it comes with less parental stress along the way. None of the mainstream methods has been shown to work better long-term than the others; the biggest factor in success is usually consistency, not which method you picked.
The fear that sleep training damages attachment traces back largely to one small, frequently misread study of infant cortisol. Since then, larger and longer studies, including ones following children for five years or more, have found no differences in attachment, emotional health, or behavior between children who were sleep trained and those who were not. The American Academy of Pediatrics considers behavioral sleep interventions safe for babies who are developmentally ready, alongside safe sleep basics.
Picking a Method Without Agonizing Over It
Most pediatricians suggest waiting until at least four to six months, once a baby is healthy, growing well, and no longer needs overnight feeds for medical reasons, before layering in any kind of sleep training. Beyond that, the "right" method is mostly about which one you can actually stick with at eleven at night. If sitting in the room while your baby cries feels unbearable, the chair method or fading will probably serve you better than extinction, even if it takes longer. If you know you will hover and undo your own progress by going back in every ninety seconds, a firmer, faster approach might genuinely be kinder to everyone by the end of the week.
It is also completely reasonable to decide the timing is not right at all, this month, this year, or ever. A baby who is fed, safe, and loved is not being harmed by however you are currently handling 2 a.m.
Whatever you choose, a consistent routine leading up to sleep, bath, a book, dim lights, the same few steps in the same order, does more heavy lifting than people expect, no matter which method surrounds it.
If exhaustion has tipped into something heavier than tiredness, if you are feeling flattened, hopeless, or unable to enjoy much of anything, that is worth mentioning to your doctor rather than just pushing through alone. For everyone else: pick an approach that matches your family's temperament, give it more than one rough night before judging it, and let go of the idea that there is a single correct way to teach a baby to sleep. There is not. There is only the way that gets your household, all of you, a little more rest.