Newborn sleep patterns: what to expect from 0 to 12 weeks

Newborns sleep for most of the day and night in total, but rarely for long at a time. They wake every few hours to feed, sleep in light, noisy bursts, and don't yet know the difference between day and night. That's normal for the first 12 weeks, and it isn't something you've caused or need to fix.

The NHS guide to helping your baby sleep says a newborn's total sleep varies but can be around 18 hours, and that newborns invariably wake repeatedly in the night for the first few months. Most babies start to settle into a day–night rhythm around 3–4 months. Until then, the most useful things you can do are keep every sleep safe, help your baby learn that night is different from day, and look after yourself.

How much do newborns sleep?

Sources give different totals, which shows how wide normal is:

KidsHealth's newborn sleep guide quotes 14–17 hours and notes that some newborns sleep 18–19 hours a day. The Australian Breastfeeding Association (ABA) quotes a large Australian study that found babies under 3 months sleep between 11 and 18 hours in total. There's no official target at this age; the baby sleep schedule by age explains why.

A better test than the total is how your baby seems. Victoria's Better Health Channel puts it simply: if your child is content and healthy, it's a sign they're getting enough sleep.

Why do newborns wake so often?

Mostly, hunger. The ABA says young babies have tiny tummies that need refilling often, and that frequent waking is normal and helps babies stay nourished, safe and connected to you. KidsHealth says breastfed babies typically feed about every 2–3 hours and bottle-fed babies about every 3–4 hours.

How they sleep matters too. Newborns spend a lot of their sleep in active (light) sleep: the ABA says about 60%, and the AAP's guide to sleep phases says newborn sleep is about equally divided between active and quiet sleep. Active sleep is easy to wake from. The ABA notes that breastfed babies wake more easily from active sleep than formula-fed babies, which is thought to be one reason they have a lower risk of SIDS.

In the first weeks, waking for feeds also protects growth. KidsHealth says babies who sleep for long stretches should be woken to feed every 3–4 hours until they show good weight gain, which usually happens within the first couple of weeks. Follow your midwife's or child-health nurse's advice for your baby, especially if they were premature, jaundiced or slow to regain their birth weight. See cluster feeding for the evenings when feeds bunch together.

What does normal newborn sleep look and sound like?

Newborn sleep is rarely quiet. The AAP describes two kinds:

• Active sleep: your baby may twitch or jerk their arms or legs, their eyes move under closed lids, and their breathing is irregular.
• Quiet sleep: the twitching stops, breathing is more regular and your baby is harder to wake.

During active sleep, the AAP says a baby's breathing may stop for 5 to 10 seconds, followed by a burst of quicker breaths, and that this periodic breathing is usually outgrown by about the middle of the first year. The AAP's newborn behaviour guide says pauses of under 10 seconds are normal if your baby is comfortable during them, and that babies can whimper, cry, groan or make other strange noises in light sleep. Grunting while pushing out a poo is normal too.

Grunting is not always normal. The AAP lists new moaning or grunting noises with each breath as a reason to call an ambulance, and the NHS urgent help guide says a baby who is having difficulty breathing may make grunting noises or suck in their tummy as they breathe. The difference is the pattern: an occasional grunt in a comfortable, pink baby is normal; a grunt on every breath, fast breathing or skin pulling in at the ribs or tummy is an emergency. See baby sleep sounds for more.

The startle (Moro) reflex, a sudden stiffening with arms flung out, is also common. The AAP says it fades by about 4 months.

How does newborn sleep change from 0 to 12 weeks?

Every baby is different, but the broad pattern looks like this:

KidsHealth says it may take a few weeks for a baby to tell night from day, and that some babies sleep 5–6 hours at a time by 2–3 months while others don't. The ABA says the day–night rhythm develops around 3–4 months but varies widely. The NHS says that as babies grow they need fewer night feeds, and some sleep 5–8 hours or more at night between 3 and 6 months.

Around 4 months, sleep changes again as it matures; see the 4-month sleep regression. If your baby was born early, compare them using their corrected age; the sleep schedule by age explains how.

How do I help my newborn tell day from night?

You can't hurry the body clock, but you can give clear cues. The NHS suggests:

1. By day: open the curtains, play and talk with your baby, and don't worry about ordinary household noise during naps.
2. At night: keep the lights low, speak quietly, keep play to a minimum and change your baby only when needed.

KidsHealth adds that there are no tricks to speed this up, and advises against keeping your baby awake during the day in the hope they'll sleep better at night. When your baby is ready, the NHS says a simple, calm bedtime routine can help too.

How long should a newborn be awake between sleeps?

Not long. Sleep Foundation's guide to newborn wake windows says newborn wake windows often range from about 30 to 90 minutes, that newborns may take six or more naps a day, and that there's no need to try to stretch them. These ranges are a practical convention, not clinical guidance; your baby's cues matter more.

Signs of tiredness Sleep Foundation lists include crying, yawning, eye-rubbing, blinking more and staring off to the side. A feed often takes up much of the awake time in the early weeks.

Example morning with a 3-week-old (fictional, built from the ranges above; adjust to your baby):

Your day may look nothing like this, and that's fine. See wake windows for how to use the ranges without watching the clock.

How do I settle my newborn safely?

The NHS says that early on, your baby may only fall asleep in your arms or while you stand by the cot. KidsHealth suggests rocking, cuddling and singing to settle a fussy baby, and letting them fall asleep in the cot at night when you can. Many families also use wrapping, a dummy or contact naps in these weeks; see swaddling for when to stop and the 5 S's for other soothing ideas.

Whatever settles your baby, the sleep itself should be safe:

• On the back, every sleep. NICHD's back-sleeping guidance says to place babies on their back for naps and at night. It says side sleeping is unstable, and that babies with reflux should also sleep on their backs.
• Spit-up isn't a reason to change position. NICHD explains that on the back, the windpipe sits above the food pipe, so a baby who spits up is not more likely to choke.
• Firm, flat and clear. A cot or bassinet with a firm, flat mattress and nothing soft in it, in your room. See safe sleep and sleep environment.

How can I cope with newborn nights?

The NHS suggests sleeping when your baby sleeps, sharing night duties with a partner, and asking a friend or relative to stay for a few days if you're on your own. If you're breastfeeding, a partner can take early-morning nappy changes, or give expressed milk once breastfeeding is established. If sleep problems continue, the NHS suggests talking to your health visitor; in Australia, your child-health nurse plays the same role.

Plan for the moment you're most likely to doze off. Feeding on a sofa or armchair at night is the riskiest place to fall asleep with your baby, so have the cot within reach and put your baby down when you feel sleepy. See sleep deprivation.

If you keep a log, note what helps you see the pattern rather than chasing a score: feed times, roughly how long your baby slept, and anything unusual such as fewer wet nappies or a change in breathing. A few days of notes can be useful to show your midwife or child-health nurse.

When to get help

These come from the AAP's newborn behaviour guide and the NHS urgent help guide. The NHS also says to call for emergency help if a baby under 3 months has a temperature of 38°C (100.4°F) or higher, or hasn't had a wee in 12 hours.

See a doctor the same day if your baby is under 1 month and looks or acts differently from usual in any way, which the AAP says needs prompt care, or if a breathing pause has lasted more than 10 seconds and your baby is now breathing normally. Feeding much less than usual or having fewer wet nappies than usual also needs a same-day check.

Mention it at your next check if you have questions about how much your baby sleeps, settling or night feeds, and your baby is otherwise feeding well and content.