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At What Age Do Babies Sleep Through the Night?
Back to Baby Sleep
If you've typed this question into your phone at 3 a.m., you're in very good company. "When will my baby sleep through the night?" is one of the most common questions new parents ask, and honestly, the most Googled at unreasonable hours. "Sleeping through the night" means different things at different stages (and different things to different people) so what counts as a win for one parent might not be the same for another. 6 weeks also looks very different to 6 months so here's a look at what's typical by age, what can affect overnight sleep, and how to gently support healthy sleep habits as your baby grows.
What Does "Sleeping Through the Night" Actually Mean?
Let's start here, because expectations matter. For adults, sleeping through the night usually means 7 to 9 hours without interruption (seriously - what a dream right?). For babies, the bar is set quite differently. Many sleep experts define "sleeping through" for young babies as a stretch of around 5 to 6 hours of uninterrupted sleep and given a newborn needs to feed roughly every 2 hours, you're not "sleeping through the night" for some time.
The good news is it will come back. Sleep development is gradual, and it varies from baby to baby. Some little ones find their rhythm earlier; others take a little longer to get there. Both are completely normal.
At What Age Do Babies Typically Sleep Through the Night?
Rather than a fixed milestone, think of longer overnight stretches as something that develops gradually, usually somewhere between 3 and 6 months for many babies, though some take longer. Feeding needs, temperament, development, and environment all play a role. There's a wide range of normal, and your baby is on their own timeline.
Here is a general guide of what to expect in the first 12 months:
- Newborns (0 to 3 Months have tiny stomachs, which means they need to feed often, around the clock. Waking every 2 to 3 hours overnight is completely expected, and it's healthy. Day and night confusion is also common in the early weeks, so don't be surprised if your newborn seems more alert at midnight than at noon. This stage is genuinely hard, there are a lot of new things to learn and every minute of extra sleep counts.
- Babies from 3 to 6 Months is often when things start to shift. Many babies begin linking sleep cycles and settling into more predictable patterns. Longer overnight stretches may start to emerge, and you might notice a more consistent bedtime routine becoming possible, usually just in time for the rolling milestone! Graduating into arms free sleep from swaddling can be daunting which is why we made it easier with our 2-in-1 TRANSITION range.
- Babies 6 to 12 Months by 6 months many babies are capable of longer stretches of overnight sleep. But "capable" doesn't always mean consistent. Night waking can still happen, and often does, for reasons like teething, illness, hunger, separation awareness, or hitting a developmental milestone. A few rough nights after a good run doesn't mean you've lost progress. It's just development doing its thing.
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What Can Affect When a Baby Sleeps Through the Night?
Age is just one piece of the puzzle. Some other factors that shape how your baby sleeps overnight could be:
Feeding Needs
Younger babies need overnight feeds. Full stop. Even some older babies may genuinely need a night feed for longer, and that's not a problem to fix. Growth spurts can also temporarily increase night waking, so if your 5-month-old suddenly wants more overnight, there's usually a good reason. There's no need to rush night-weaning before your baby is ready.
Sleep Environment
A calm, safe, and comfortable sleep space makes a real difference. The basics: always place baby on their back, on a firm and flat sleep surface, with no loose blankets or soft items in the crib. When it comes to keeping baby comfortable through the night, well-designed sleepwear can help support warmth and security without the need for loose bedding.
Developmental Changes
Rolling, teething, learning to crawl, and growing awareness of the world around them can all affect overnight sleep. These disruptions are normal parts of development, even when they're inconvenient at 2 a.m.
Temperament and Routine
Some babies naturally settle more easily than others but what you can influence is consistency. A predictable bedtime routine helps signal to your baby that sleep is coming, even if results build gradually over time.
Signs Your Baby May Be Ready for Longer Night Sleep
Every baby is different, but here are some signs that longer overnight stretches might be on the horizon:
- More predictable feeding patterns during the day
- Daytime naps becoming more consistent
- Easier settling at bedtime
- Naturally dropping overnight feeds
- Waking less frequently between sleep cycles
How to Support Healthy Sleep Habits
There's no magic formula, but there are ways to lay the groundwork over time.
- Create a Consistent Bedtime Routine
Simple and repeatable is the goal. Think: bath, feed, cuddle, story, bed. The sequence matters less than the consistency. Over time, your baby will begin to recognize these cues as "sleep is coming," which can make the transition easier for everyone.
- Watch Awake Windows and Sleep Cues
Getting the timing right matters. Signs like yawning, staring off into space, fussiness, or eye-rubbing are your baby's way of saying "I'm ready." Missing that window often leads to overtiredness, which can actually make settling harder.
- Encourage a Calm Sleep Environment
Low lights, reduced stimulation, and a comfortable room temperature all help set the scene. Choosing breathable, thoughtfully designed sleepwear can support your baby's comfort through the night without the worry of loose blankets.
Give Sleep Development Time
Sleep is not always linear. There will be setbacks, regressions, and nights that feel like you're back at square one. Progress often comes in stages, and small improvements matter more than you might think.
When Night Waking Is Still Normal
Even babies who have settled into longer stretches will still wake overnight sometimes. Illness, teething, travel, a change in routine, or a developmental leap can all throw things off temporarily. This is part of babyhood, not a sign that something has gone wrong.
When to Speak With Your Doctor
Every baby is different, and if you have concerns, it's always worth checking in with your pediatrician. In particular, seek personalized guidance if you notice:
- issues with feeding or weight gain
- unusual breathing during sleep
- signs of reflux
- consistently unsettled sleep that doesn't improve
- or a sudden change in your baby's sleep patterns
And it's also OK to reach out if you are struggling with sleep deprivation. Your mental health and well being matter and broken sleep can be really challenging to navigate postpartum.
Support is essential
Every child is different so what works for one baby, might not work for another. If you are struggling with sleep deprivation and need support, reach out to your trusted medical professional for guidance.
Parent Talk:
"The honest truth is that baby sleep rarely arrives as one big moment. It's more likely to be one better night, then a setback, then two better nights, then a tooth coming through etc etc! Progress that doesn't feel like progress, until one morning you realise you slept. If your baby isn't there yet, you haven't missed anything. You're not doing it wrong. Consistency and comfort are quietly doing their job, even on the nights it descends into chaos - tomorrow is another day.
And if you're reading this at 3 a.m., phone brightness all the way down, baby finally settled wondering if it's only you whose baby isn't sleeping, trust us, you're not alone and better sleep is coming."
Elise - Mom of 2
Frequently Asked Questions
Can a newborn sleep through the night?
Newborns need frequent feeding and care overnight, so regular waking is healthy and expected at this stage.
Is it normal for a 6-month-old to still wake at night?
Yes. Many 6-month-olds still wake overnight, even if they're capable of longer stretches. Teething, development, and feeding needs can all play a role.
Do formula-fed babies sleep through the night earlier than breastfed babies?
Sleep varies widely, and feeding method is just one of many factors. Some formula-fed babies sleep longer stretches earlier; some don't. The same is true for breastfed babies. There's no reliable rule here.
How many hours counts as sleeping through the night for a baby?
For babies, "sleeping through" usually refers to a longer uninterrupted stretch, often 5 to 6 hours, rather than a full 8 hours of sleep. As babies grow, those stretches typically extend.