How to track newborn sleep without writing it by hand

How much does a newborn sleep?

The National Sleep Foundation puts newborns at 14 to 17 hours a day, and adds a wider band it describes as "may be appropriate for some individuals" — added explicitly to acknowledge individual variability. From four months the AASM becomes willing to give a figure: 12 to 16 hours per 24 hours, naps included.

Below four months, the AASM says nothing, and says why, in a footnote most articles quietly drop: recommendations are excluded due to the wide range of normal variation in duration and patterns of sleep, and insufficient evidence for associations with health outcomes.

Quebec's INSPQ goes further and gives no newborn total at all, opening instead with a sentence worth keeping: your baby will sleep and wake according to their needs. Ten days of your own data beats a number that the sleep bodies themselves will not commit to.

Why your baby cannot tell day from night

Because at first there is no difference to tell. The NSF puts newborn sleep at 10.5 to 18 hours on an irregular schedule, with one to three hours awake in between. Circadian rhythms only begin to develop at about six weeks, and most infants settle into a regular sleep-wake cycle between three and six months.

The cycle itself is short — about 50 minutes — and alternates quiet sleep and active sleep. In active sleep, as the INSPQ describes it, a baby may make sucking movements, frown, cry, smile, jump, tremble, groan, breathe hard or move. Their verdict on all of it: this is normal.

This is why splitting naps from nights only starts telling you something around the second month. Before that, a log records what happened; it does not yet show a rhythm, because there is not one.

Sleeping through the night is a lower bar than you think

The INSPQ gives the only numeric definition you will find from a health body: sleeping through the night generally means five or six hours of sleep between 11 p.m. and 8 a.m. Not twelve. Parents measuring themselves against twelve are failing a test nobody set.

On the age, the NSF counts 70 to 80 percent of infants sleeping through by nine months, and says night feeds are usually unnecessary by six months. The INSPQ adds the part that rarely gets quoted: between four and six months some babies stop needing to feed at night, and others still need to, possibly even more than in the weeks before.

Night wakings are part of the design

A baby surfacing at the end of a sleep cycle is not a baby with a sleep problem. Short wakings at the end of each roughly 50-minute cycle are ordinary, and a baby left undisturbed will often resettle without help. What changes with age is not the number of wakings but the ability to go back down alone.

For a log, that means you do not need to chase every stir. What reads clearly over a week is the 24-hour total, the day/night split, and the evenings where falling asleep takes a long time.

Wake windows are not a medical concept

The term is everywhere in baby apps and nowhere in the literature. Dr Craig Canapari, a pediatric sleep physician at Yale-New Haven Children's Hospital, puts it plainly: a PubMed search pulls up zero references on the term, and the published durations do not seem to be based on any scientific evidence. It is not taught, discussed or researched in pediatric sleep medicine.

The four-month sleep regression fares no better. Canapari points to Jodi Mindell's analysis of thousands of mothers: the data clearly indicate there is no specific age at which sleep suddenly shifts. Sleep varies, and illness and motor milestones disrupt it. That is enough to explain a bad fortnight.

Wibou still shows you the gap between two sleeps, because it helps you pick the moment for a nap. But it is a parent's convention, not a standard to hit. If your baby does not match the chart, the chart is wrong.

What is actually worth logging

Four things, and no more: the total over 24 hours, how it splits between the night and the naps, how long settling takes, and the nights that break up. Those are the questions a clinician asks, and they are the ones you cannot answer from memory in a waiting room.

A timer produces all four on its own. That is the whole point of logging rather than remembering: the difference between a figure you recorded and a figure you reconstructed while exhausted.

Naps and nights on different rows

Mix them and you cannot tell whether the problem is the day or the night. In Wibou you start a nap or a night. The timer stays on the Lock Screen, so you do not reopen the app every ten minutes, and the other parent sees the nap that is still running without having to ask.

If you forget to stop the timer, fix the end time. A six-hour "nap" is almost always a missed tap, not a record. A corrected hour beats a wild data point that wrecks the week's average.

What a sleep log does not do

It does not make anyone sleep. No log turns a three-week-old into a long sleeper, and Wibou will never tell you whether your baby's sleep is fine — that is not its job. You record the number; your clinician reads it. If settling or waking worries you, the log earns its keep differently: you arrive with ten days of facts instead of an impression of being tired.