How to track baby sleep: a simple newborn sleep log

A newborn sleeps a lot and almost never when you expect. Parents who track sleep usually do it for one of three reasons: to see whether a pattern is forming, to answer the pediatrician's "how much is she sleeping?", or to share the load fairly between two adults who are each running on fumes. This guide covers what is worth recording, how to compare your baby against published ranges without over-reading them, and the safe sleep basics that matter more than any chart.

Safe sleep comes first

Before logging anything, the part that is not optional. The CDC's safe sleep guidance, which matches the American Academy of Pediatrics, is straightforward:

• Place your baby on their back for all sleep times, naps and at night.
• Use a firm, flat sleep surface, not inclined, such as a safety-approved crib with a fitted sheet.
• Keep the baby's sleep space in your room, ideally until your baby is at least 6 months old.
• Keep soft bedding out of the sleep area: blankets, pillows, bumper pads and stuffed animals.

A sleep log is a record of how long, not a reason to bend these rules. If a tracker's "where did the baby fall asleep" field tempts you to note a sofa, a swing or an adult bed, treat that as a prompt to move the baby to a safe surface, not as data. For anything beyond these basics, ask your pediatrician.

What the numbers say about newborn sleep

The CDC's page on sleep lists recommended totals by age. For newborns (0 to 3 months) it gives 14 to 17 hours in 24 hours, and for infants (4 to 12 months) 12 to 16 hours including naps. The CDC credits these to consensus statements by the National Sleep Foundation (Hirshkowitz et al., 2015, Sleep Health) and the American Academy of Sleep Medicine (Paruthi et al., 2016, Journal of Clinical Sleep Medicine).

Two cautions when you set your own log against these ranges. First, they are population recommendations for healthy babies, not targets to hit, and a baby at 13 or 18 hours is not automatically a problem. Second, in the first weeks the total matters less than the fact that your baby is waking to feed. The AAP says breastfed newborns usually nurse 10 to 12 times in 24 hours and bottle-fed newborns eat at least 8 times in 24 hours, so sleep in the early weeks is broken up by design.

What to record (and what to skip)

The mistake most parents make is logging too much. If recording a nap takes more than two taps, you will stop doing it by day four. The essentials are:

1. Start time when the baby falls asleep.
2. End time when they wake.
3. Night or day, which a good tracker works out for you.

Optional extras that are genuinely useful: a short note when something unusual happens (very restless, woke crying, unusually hard to wake for a feed), and which adult did the settling if you are sharing nights. Skip anything that requires judgment, such as sleep quality ratings. They change with your own tiredness and rarely help.

Start/stop timers beat after-the-fact entries

A timer is the single best feature of a sleep log. Tap when the baby goes down, tap when they wake, and the duration is exact. Reconstructing a nap from memory at 4 p.m. ("he went down around 1:15? maybe 1:30?") produces numbers that look precise and are not. Nightfeed has start/stop sleep timers alongside feeds and diapers, and you can start one from the main screen without hunting through menus.

If you forget to start the timer, enter the time as an estimate and move on. A slightly rough log you keep going is worth more than a perfect one you abandon.

How to read your log after a few days

Do not read the log daily; you will see noise. Look at it every three or four days and ask four questions:

• What is the 24-hour total? Add sleep across a full day and compare it to the 14 to 17 hour range for a newborn. Treat it as context, not a grade.
• What is the longest stretch? Many parents celebrate the first four-hour stretch. Note when it happens and whether it falls at night.
• How is sleep split between day and night? Newborns do not yet distinguish day from night. Over the following weeks many babies shift more of their sleep to the night, and a log can show that shift before you feel it. Your pediatrician can tell you what to expect at your baby's age.
• Does sleep line up with feeds? Because feeds and sleep share a timeline, you can see whether long gaps between feeds are following long sleeps, and whether your baby settles easily after eating. This is the real benefit of tracking sleep, feeding and diapers together.

Sleep tracking mistakes to avoid

• Using the log as a scoreboard. The numbers describe your baby, they do not rate you.
• Comparing with other babies. Ranges are wide, and your friend's six-week-old is not your control group.
• Letting a gadget override a safe-sleep rule. A tracker, wearable or monitor records or alerts; it does not make an unsafe sleep space safe. If you are considering a monitor, discuss it with your pediatrician, and do not let a green light change how you put the baby to sleep.
• Letting the log cost you sleep. If the habit of logging is waking you fully, switch to a simpler method (e.g., only record night wakings and nap totals).
• Forgetting the handoff. If two adults share nights, agree on one device or a shared view so you are not recording the same sleep twice or missing one.

Sharing the log with your pediatrician

At a checkup the doctor will usually ask how much the baby is sleeping and feeding. A printed or shared summary of the last couple of weeks is more reliable than memory. Highlight anything unusual in the log, for example a day with very little sleep and many feeds, or a baby who has become very hard to wake. Our guide on preparing a pediatrician report lists what to include. Nightfeed can produce a 14-day summary and share it as PDF or text.

When to ask for help

A log makes some problems visible but cannot diagnose them. Contact your pediatrician if your baby is very hard to wake for feeds, seems to breathe with effort, or has pauses in breathing; if feeding is clearly poor; or if you are worried for any reason. In an emergency, call your local emergency number. Parents who are exhausted also deserve support, and your own doctor or health visitor can help with that.

Nightfeed and this website provide general information and a logging tool. They are not medical devices and do not replace advice from your pediatrician.

Frequently asked questions

How many hours should a newborn sleep?

The CDC lists 14 to 17 hours in 24 hours for newborns aged 0 to 3 months and 12 to 16 hours including naps for infants aged 4 to 12 months, citing National Sleep Foundation and American Academy of Sleep Medicine recommendations.

Should I wake my newborn to feed?

It depends on the baby. The AAP says that if a baby is having trouble gaining weight you should not wait too long between feedings, even if that means waking the baby. Ask your pediatrician what applies to your baby.

Where should a newborn sleep?

The CDC says to place babies on their backs on a firm, flat sleep surface such as a safety-approved crib with a fitted sheet, in your room ideally until your baby is at least 6 months old, with no soft bedding.

Do I need to track my baby's sleep?

No. Tracking is optional. It helps most when you want to see patterns, answer the pediatrician's questions or share night duty fairly. If it adds stress, track less.