Your baby is waking every one to two hours because that is how newborn sleep is built, not because something has gone wrong. The American Academy of Pediatrics puts it flatly: babies do not have regular sleep cycles until about four months of age.
If you are reading this at 3am holding a baby who was asleep twenty minutes ago, you have almost certainly already typed some version of how do I make this stop into a search bar. Possibly more than once tonight.
The number that explains the whole night
The AAP says newborns sleep about 16 to 17 hours a day, but may only sleep one or two hours at a time.
Sixteen hours sounds generous until you do the division. It is not one long night with naps attached. It is that total, chopped into pieces, distributed across the full 24 hours with no regard for which of them are dark.
This is the thing nobody quite gets across before the baby arrives. You do not lose sleep because the baby sleeps badly. You lose sleep because the baby sleeps fine, in the wrong shape.
And there is no bank. You cannot make it up on Saturday. The stretch where you were confident that you would simply be tired for a while, and would handle it, ends somewhere in the second week when you realize nothing is accumulating.
What we cut from this post
An earlier version of this page told you most newborns can only manage 45 to 60 minutes awake before they need to sleep again, and that missing that window makes settling harder.
We could not find that number published by any health body. Not the AAP, not the CDC, not the NHS. Every source we could trace it to was a sleep consultant or a product blog. It is gone.
We are leaving this note here rather than quietly deleting it, because that number is everywhere and you have probably built a schedule around it. What the AAP actually publishes is the wider, less satisfying version: no regular cycles before four months, one to two hour stretches, and a lot of variation between babies.
The advice that argues with itself
Here is where honest reporting gets awkward, because the guidance does not agree with itself.
The AAP’s own sleep page recommends putting babies down drowsy but awake, saying that if you hold or rock babies to sleep they may struggle to get back to sleep when they wake in the night. Standard advice, given by most pediatricians.
Against that, Jennie Rosier, an associate professor in the School of Communication Studies at James Madison University, has published a book with Routledge called Dispelling Cry-It-Out Sleep Training Myths and What to Do Instead, written with a team of interdisciplinary scholars drawing on psychology, neuroscience, anthropology and attachment research. Their argument is that infant night waking is not a behavioral problem to fix but a normal and developmentally expected part of infancy, and that fragmented sleep and night time signaling are typical. Rather than independence training, they argue for supporting sleep through connection, responsiveness, environmental adjustment and co-regulation.
We are not going to tell you which of those is right. One is a pediatric body’s standing recommendation and the other is a recent academic argument against it. Both are real, they point in different directions, and anybody presenting this as settled is selling something.
What we will say is that the thing this argument is actually about is not whether your baby wakes. Everyone agrees they do.
Why they surface so often
Adults run roughly 90 minute sleep cycles. Newborn cycles are shorter and a larger share of that time is light sleep, which is why your baby comes close to waking far more often than you do.
Sometimes they resettle without you knowing. Sometimes they surface, notice they are hungry or alone, and call.
The hunger part is not incidental. Newborn stomachs are small enough that frequent feeding through the night is how most babies get enough in the early months, which is why night waking and feeding are the same problem rather than two. If your evenings have collapsed into one continuous feed, our post on cluster feeding covers that specifically.
What actually helps
None of this means doing nothing. It means the target moves. You are not trying to stop the waking. You are trying to make the nights cost less.
Keep nights boring. This one is properly sourced and it is the highest yield thing on the list. The AAP says not to stimulate or wake babies when you feed or change them at night, and that if you speak, speak softly. No lights on, no chat, no eye contact competition. Nothing about the night should be more interesting than the day.
Make the days busier. The AAP’s other half of the same instruction, and the one everybody forgets. Keep babies awake longer during the day, spend time talking and playing, and it helps them sleep for longer stretches at night.
Split the night, do not share it. If there are two of you, the instinct is for both of you to get up, and it is the wrong instinct. Two people each getting four broken hours is worse than one person getting five unbroken ones while the other covers. Shifts feel unfair in the moment and are enormously better by day four.
Have a short routine and do not upgrade it. Dim the lights, change the diaper, same song. It works because it repeats, not because it is elaborate. Anything you add at week three you will resent at week nine.
For the fuller version of what the guidance supports, our post on newborn sleep tips goes through it point by point with the safe sleep rules attached.
Nobody is failing here
Sleep is the most judged topic in early parenting, and it is impossible to read anything about it without feeling assessed for whatever you already decided.
That is not a useful takeaway from any of the above. If a structured approach worked for your family, that is a real result and it does not become wrong because a new book exists. If it did not work, that is not a verdict on you either.
The one thing the evidence is clear about is that a baby waking at night is not broken, and neither are you.
When it is worth a call
Normal night waking is one thing. These are worth raising.
- Your baby seems to be in pain when they wake
- Weight gain your pediatrician is not happy with
- Noticeably fewer wet diapers than usual
- Your own exhaustion has stopped being ordinary tiredness. If you cannot sleep even when the baby is asleep, that is a separate symptom and it is worth saying out loud at an appointment
That last one gets skipped, because the appointment is about the baby and you are not the patient. Say it anyway.
The short version
- The AAP: no regular sleep cycles until about four months, 16 to 17 hours a day, one to two hours at a time.
- The 45 to 60 minute wake window is not published by any health body. We cut it.
- Night waking is not a habit your baby picked up.
- Keep nights boring and days busy. Both halves are AAP guidance.
- Split the night into shifts rather than both getting up.
- The sleep training question is genuinely contested. Anyone telling you it is settled is not reporting it accurately.
Sources
- American Academy of Pediatrics, HealthyChildren.org, “Getting Your Baby to Sleep”
- American Academy of Pediatrics, HealthyChildren.org, “How Often and How Much Should Your Baby Eat?”
- Rosier JG et al., Dispelling Cry-It-Out Sleep Training Myths and What to Do Instead, Routledge. Summarised in James Madison University, “Q&A: New research questions the science behind cry-it-out sleep training”, 13 July 2026
A note on this post. Written and edited by the NewBloom editorial team. NewBloom is not written by doctors, nurses or midwives, and nothing here is medical advice. We read the current guidance from bodies like the AAP, the CDC and the NHS and write down what it says, with every claim traced to its source and named in the sentence where it appears. General guidance is not the same as an answer about your baby. Your pediatrician, midwife or health visitor can see your child and we cannot, so anything here that raises a question about your own baby is a reason to ask them. If something is wrong right now, contact your doctor or your local emergency number. More about how we write these posts.