Why Does My Baby Keep Waking Up at Night?

If your baby keeps waking throughout the night, it can be exhausting, especially when it seems that other babies are already sleeping for long stretches. Frequent waking does not necessarily mean anything is wrong or that you have created a bad sleep habit.

Babies wake at night for many reasons. Young babies need to wake for feeds, while sleep patterns continue to develop throughout the first year. Hunger, teething, illness, discomfort and changes in routine can all affect sleep too.

The NHS emphasises that babies have individual sleep patterns. Some begin sleeping for longer stretches relatively early, while others continue waking regularly for much longer.

Understanding what might be behind the waking can help you decide whether your baby simply needs time and reassurance or whether something else needs attention.

Why do babies wake during the night?

Waking is a normal part of sleep. Adults wake briefly too, although we often do not remember it.

For babies, those waking periods can be more noticeable because their sleep is still developing and they may need help with feeding, comfort or settling.

The NHS explains that newborn babies wake repeatedly during the night because they need to feed. As babies grow, some begin sleeping for longer periods, but there is considerable variation.

Your baby’s night waking may also change from week to week. A baby who has recently started sleeping for a longer stretch can begin waking frequently again without anything necessarily being wrong.

Rather than comparing one night with another, it can help to look at the wider pattern.

Hunger can cause night waking

For young babies, waking to feed is expected.

The NHS notes that newborns are unlikely to sleep through the night because they need to feed. As babies grow, feeding patterns change, but individual needs continue to vary.

If your baby wakes and appears hungry, respond to their feeding needs according to the guidance you have been given.

Do not reduce, delay or remove night feeds solely to encourage longer sleep without considering your baby’s age, growth, feeding method and individual circumstances. If you are unsure whether your baby still needs night feeds, speak to your health visitor, GP, midwife or another qualified healthcare professional.

Sleep advice should not take priority over appropriate feeding.

Your baby’s sleep pattern is still developing

Baby sleep does not work exactly like adult sleep.

HealthyChildren.org, from the American Academy of Pediatrics, explains that babies do not have regular sleep cycles until around 4 months of age. Sleep becomes more organised as babies grow.

This can mean that a baby who seemed to sleep deeply for long stretches as a newborn begins waking differently a few months later.

Parents sometimes describe periods of suddenly disrupted sleep as a sleep regression. Although this term can be useful for describing a change, sleep does not follow a precise developmental calendar for every baby.

Your baby’s sleep may improve, become unsettled and then change again throughout the first year.

Teething can disturb sleep

Teething can make some babies uncomfortable and unsettled.

The NHS notes that teething may affect a baby’s sleep. If your baby is drooling more, chewing objects or showing other signs associated with teething, discomfort may be contributing to difficult nights.

Not every period of night waking is caused by teething, however.

If your baby appears to be in significant pain, seems unwell or you are unsure what is causing their discomfort, seek advice from a pharmacist, health visitor or GP rather than assuming teething is responsible.

Illness can change your baby’s sleep

A baby who normally sleeps fairly predictably may suddenly wake much more often when they are unwell.

The NHS lists illness among the things that can change a baby’s sleep pattern.

If your baby has symptoms of illness, seems unusually distressed or their behaviour is noticeably different, focus on their health rather than trying to preserve the usual sleep routine.

Some babies may want more comfort and wake more frequently while they recover. Their previous sleep pattern may return gradually once they feel better.

If you are concerned about your baby’s symptoms, seek appropriate medical advice.

Growth and development can affect sleep

The first year brings rapid changes.

The NHS notes that growth spurts can affect babies’ sleep. Your baby may temporarily feed differently, sleep differently or seem more unsettled than usual.

New abilities and changing patterns of alertness can also alter how the day fits together. Naps may shift, awake periods may become longer and bedtime may gradually change.

A difficult week does not necessarily mean you need a completely new sleep schedule.

Give yourself time to see whether the change is temporary before assuming the previous routine no longer works.

Your baby may be too hot or uncomfortable

Temperature can affect sleep, and avoiding overheating is also an important part of safer sleep.

The Lullaby Trust recommends a room temperature of around 16°C to 20°C for babies.

To check whether your baby is too warm, feel their chest or the back of their neck rather than judging by their hands and feet, which can naturally feel cooler. If their skin feels hot or sweaty, remove a layer.

Also check simple sources of discomfort such as a wet or dirty nappy or clothing that has become uncomfortable.

Keep your baby’s sleep environment consistent with current NHS and Lullaby Trust safer-sleep guidance.

Daytime sleep can change the rhythm of the night

Daytime and night-time sleep are connected, but that does not mean every night waking can be fixed by changing naps.

Babies’ total sleep needs vary, and their nap patterns change substantially during the first year.

If your baby’s night sleep has changed, it can be useful to look at the whole day. Have naps suddenly become much shorter or longer? Has the usual bedtime shifted? Is your baby staying awake for longer than before?

Try to notice patterns rather than immediately cutting naps in the hope that your baby will become tired enough to sleep all night.

Keeping a baby awake for longer does not guarantee an uninterrupted night.

What if your baby wakes every hour?

Very frequent waking can be particularly draining.

There are many possible explanations, from feeding and discomfort to a temporary change in sleep pattern. It is difficult to determine the reason from the frequency alone.

Start with the basics. Consider whether your baby needs feeding, changing or comfort and whether they appear well.

If waking every hour is a sudden change, think about what else has changed recently. Illness, teething or changes in daytime sleep may be relevant.

If frequent waking persists or you are worried about your baby’s feeding, breathing, development or general health, speak to your health visitor or GP.

You do not have to wait until you are completely exhausted to ask for advice.

What can you do when your baby wakes at night?

You cannot guarantee that a baby will stop waking, but you can keep night-time calm and predictable.

The NHS recommends:

keeping lights low
speaking quietly
avoiding play during night-time waking
putting your baby down after feeding and changing
keeping night-time interactions calm

These small cues can help distinguish night from day without ignoring your baby’s needs.

If your baby needs comfort, respond in a way that works for your family. There is no requirement to turn every waking into a sleep-training exercise.

Can a bedtime routine help?

A simple bedtime routine can give your baby familiar cues that sleep is approaching.

The NHS suggests that a calming routine may help babies settle. This might include a bath, changing into night clothes, dimming the lights, a cuddle, a story or a lullaby.

You do not need to include every step.

Choose a short sequence that feels manageable and repeatable. If a bath makes your baby more energetic, leave it out. If feeding naturally forms part of your evening routine, work with the feeding guidance appropriate for your baby.

A bedtime routine may make bedtime feel more predictable, but it cannot guarantee that your baby will not wake during the night.

Should you leave a baby to cry when they wake?

How you respond to waking can depend on your baby’s age, needs and your family’s approach.

For young babies, night waking often involves genuine feeding and care needs. If your baby is crying, first consider whether they are hungry, uncomfortable, unwell or need changing.

There is no need to ignore your baby’s needs because you are worried that responding will automatically create a bad habit.

If you are considering a particular sleep-training approach, especially for a young baby, discuss any concerns with your health visitor or another qualified professional and continue following safer-sleep and feeding guidance.

Keep night-time sleep safe

Exhaustion can make difficult nights even harder, and it can increase the chance of accidentally falling asleep while holding your baby.

The NHS advises placing babies on their backs for sleep in a clear, flat, separate sleep space. For the first six months, the safest place is in the same room as you.

The Lullaby Trust warns that falling asleep with a baby on a sofa or armchair is particularly dangerous.

If you think you may fall asleep while feeding or comforting your baby, plan for this possibility before you become extremely tired. Keep their safe sleep space ready and ask for practical support where possible.

Try not to measure your baby against somebody else’s sleep

Few parenting conversations create comparison quite like baby sleep.

One parent may say their baby sleeps all night while yours is waking repeatedly. That can make normal waking feel like evidence that something has gone wrong.

The NHS is clear that babies differ. Some need more sleep than others, and the age at which babies begin sleeping for longer stretches varies.

Instead of aiming for somebody else’s schedule, look at your baby’s own pattern, feeding, health and behaviour.

Sleep can change repeatedly throughout infancy. A difficult period does not erase the progress that came before it.

When to get professional advice

Speak to your health visitor, GP, midwife or another qualified healthcare professional if you are concerned about frequent night waking, particularly if it is a sudden change or is accompanied by feeding difficulties, signs of illness or changes in your baby’s general behaviour.

Seek medical advice if you are worried about your baby’s breathing, responsiveness, temperature, feeding or general wellbeing rather than assuming disrupted sleep is simply a phase.

If you are unsure whether your baby still needs feeds during the night, ask a healthcare professional who can consider their age, growth and individual circumstances.

You should also ask for support if repeated waking is leaving you extremely exhausted or struggling to care for yourself or your baby safely. Broken sleep can be very difficult, and you do not need to manage severe tiredness alone.