Newborn Fighting Sleep? Why It Happens and How to Help

Last reviewed: November 14, 2026. Checked against guidance from the American Academy of Pediatrics (AAP), Raising Children Network, KidsHealth NZ and Nationwide Children’s Hospital.

Your baby is yawning, rubbing their eyes and clearly exhausted. Yet the moment you try to settle them, they arch their back, cry and pop their eyes wide open again. A newborn fighting sleep is one of the most frustrating parts of the early weeks, and one of the most common. The good news: it’s usually a timing or comfort problem you can work with, not a sign that something is wrong.

Why Is My Newborn Fighting Sleep?

Newborns can’t simply decide to fall asleep the way adults can. They rely on the right timing and a calm setting, and they get upset when either one is off. These are the most common reasons:

• Overtired: if your baby stays awake past their sleepy window, their body gets wound up instead of winding down. An overtired baby often cries harder and takes longer to settle, which is why it can look like they are fighting sleep on purpose.
• Overstimulated: bright lights, a busy room, lots of visitors, TV noise or a long play session can be too much for a newborn’s nervous system.
• Hungry: newborns have tiny stomachs and need to feed often, day and night. A baby who is still hungry won’t settle for long.
• Uncomfortable: a wet or dirty diaper, trapped wind, being too hot or too cold, or a scratchy tag can all keep a baby awake.
• Days and nights mixed up: many newborns are born without a settled body clock. According to Cincinnati Children’s, many newborns have their days and nights confused, so they’re wide awake at night and sleepy in the daytime.
• The evening fussy period: many babies have a predictable fussy stretch in the evening that makes bedtime especially hard (more on this below).
• Feeling unwell: a stuffy nose, a cold or a fever can make it hard to settle. See our guide to a newborn who sounds congested.

How Much Sleep Does a Newborn Need?

Newborns sleep about 16 to 17 hours a day, but they may only sleep 1 or 2 hours at a time, according to the American Academy of Pediatrics. That means they need to fall asleep many times a day, and each of those times is a chance to miss the window.

Newborns also get tired very quickly. Raising Children Network notes that some newborns are tired as soon as 1 to 1½ hours after waking, while others are happy to stay awake for 2 hours or more. As a rough guide:

These ranges are based on guidance from CHOC Children’s. Remember that “awake time” includes feeding, burping and a diaper change, so with a young newborn there may only be a few minutes of play before it’s time to wind down again. Follow your own baby’s cues over the clock.

Newborn Sleep Cues: Signs Your Baby Is Tired

Babies show they are tired through their body language. KidsHealth NZ lists closing fists, rubbing eyes, yawning, fluttering eyelids, staring into space, jerky arm and leg movements, arching backwards and frowning as common tired signs. It helps to think of them in two groups:

• Early tired signs (the best time to start settling): going quiet and still, staring into space, turning away from faces or toys, fluttering eyelids, a first yawn.
• Later tired signs (your baby is getting overtired): rubbing eyes or ears, frowning or looking worried, clenched fists, jerky movements, arching the back, fussing that quickly turns into crying.

Many parents only notice the later signs, by which point the baby is already overtired. Try watching for the early ones and starting your wind-down as soon as you see them. Over a few days you’ll start to spot your own baby’s pattern.

Signs of an Overtired Newborn

• Crying that is hard to soothe, especially toward the end of an awake stretch
• Arching, stiffening or turning away when you try to hold or rock them
• Falling asleep and then startling awake again after a few minutes
• Very short naps of 20 to 30 minutes
• Feeding frantically, then pulling off and crying

One overtired evening is normal. If it happens most days, try settling your baby a little earlier in each awake stretch.

Why It Often Gets Worse in the Evening

If your baby fights sleep most in the evening, you’re not imagining it. Many babies have a regular fussy period that tends to happen between 6 p.m. and midnight. According to the AAP, this daily fussing usually peaks at about 3 hours a day by 6 weeks old, then drops to 1 or 2 hours a day by 3 to 4 months. Knowing it has an end point can make the hard evenings easier to get through.

How to Help a Newborn Who Fights Sleep

1. Start settling early. Watch the clock and the cues together. If your baby has been awake for 45 minutes to an hour and you see an early tired sign, begin winding down right away.
2. Keep a short, predictable routine. The same few steps every time, such as a feed, a burp, a fresh diaper, a swaddle or sleep sack, dim lights and the same song, tell your baby that sleep is coming. Stop swaddling once your baby shows signs of trying to roll.
3. Cut the stimulation. Move to a quiet, dim room, put screens away and keep visitors and play to a minimum near nap time.
4. Bring back womb-like comfort. The AAP suggests white noise, the hum of a fan or a heartbeat recording, and gentle motion such as rocking or walking your baby in a carrier.
5. Check hunger and comfort first. Offer a feed if it has been a while, burp well, change the diaper and make sure your baby isn’t too warm. A light layer more than you’d wear is usually enough.
6. Teach day and night. Keep daytime feeds bright and chatty with normal household noise. Keep night feeds dark, quiet and boring, with only a dim light and no play.
7. Offer a pacifier at sleep time. Many babies settle better with one, and the AAP recommends offering a pacifier at naps and bedtime to lower the risk of SIDS. If you’re breastfeeding, you can wait until feeding is going well.
8. Try laying your baby down drowsy, sometimes. Putting your baby down while sleepy but still awake can help them learn to fall asleep in their bed. Falling asleep while feeding or being held is completely normal for newborns, so there is no need to fight it every time. If your baby will only nap in your arms, read why babies only sleep when held.
9. Tag-team with another adult. A different person, a different smell and a fresh pair of arms can sometimes settle a baby who has been fighting sleep with you.

For more ideas for the night shift, see our tips for when your newborn won’t sleep at night.

Keep Sleep Safe, Even When You’re Exhausted

When a baby has fought sleep for an hour, it’s tempting to let them stay asleep wherever they finally drop off. The AAP’s safe sleep guidance still applies to every sleep:

• Place your baby on their back for every nap and at night.
• Use a firm, flat crib, bassinet or play yard with a fitted sheet and nothing else in it: no pillows, blankets, bumpers or soft toys.
• Share a room, not a bed, ideally for at least the first 6 months.
• Never let your baby sleep on a couch, armchair or adult bed, and don’t use inclined sleepers. If your baby falls asleep in a swing, bouncer or car seat outside the car, move them to their crib or bassinet.
• If you feel yourself dozing off while holding your baby, put them down in their crib first.

When You’re at Your Limit

A baby who fights sleep for hours can wear anyone down. If you feel overwhelmed, it’s okay to place your baby on their back in their crib and step away for a few minutes to breathe. Nationwide Children’s Hospital reminds parents never to shake a baby to stop crying, because shaking can damage a baby’s brain. It also points out that babies under 6 months can’t be spoiled, and a fussy baby is not angry with you or rejecting you.

Ask for help when you can. Our free baby handover sheet makes it easy to pass your baby to a partner, grandparent or friend so you can rest. If you notice anger building up more often than you expect, read about postpartum rage and talk to your doctor.

When to Call Your Pediatrician

Fighting sleep on its own is normal. Call your baby’s doctor if it comes with any of these:

• A temperature of 100.4°F (38°C) or higher in a baby under 3 months. See what counts as a fever in a baby.
• Crying that sounds different from usual, such as very high-pitched, weak or moaning, or crying you can’t soothe at all for hours
• Feeding poorly, or fewer wet diapers than usual
• Being very hard to wake, floppy or unusually sleepy
• Trouble breathing, repeated vomiting, or a rash
• A sudden big change in how your baby sleeps or behaves
• You feel you can’t cope. That is a good reason to call too.

Call 911 if your baby has trouble breathing, turns blue or grey, or can’t be woken.

Frequently Asked Questions

Is it normal for a newborn to fight sleep?

Yes. It’s very common in the first weeks and months. Most of the time it’s a sign of being overtired, overstimulated or hungry, and it improves as your baby’s body clock matures.

Why does my newborn fight sleep at night?

The most common reasons are day and night confusion, the evening fussy period, and being overtired after a long day. Keeping nights dark and quiet and days bright and active helps your baby’s body clock catch up.

Can a newborn be overtired?

Yes. Newborns can only stay awake for a short time, often 45 minutes to 1½ hours. If they stay up longer, they may cry harder, arch and wake from short naps. Starting to settle at the first tired signs helps prevent it.

How long does the sleep-fighting phase last?

For many babies, fussiness peaks around 6 weeks and eases a lot by 3 to 4 months, as sleep becomes more settled and days and nights sort themselves out. Every baby is different, and some phases come back briefly during growth spurts or a sleep regression.

Should I let my newborn cry it out?

Sleep training isn’t recommended for newborns. Young babies need you to respond to them, and most experts suggest waiting until a baby is at least 4 to 6 months old before trying any form of sleep training. For now, focus on timing, comfort and a calm routine.

The Bottom Line

A newborn fighting sleep is usually telling you they are overtired, overstimulated, hungry or uncomfortable. Watch for early tired signs, start winding down after 45 minutes to an hour awake, keep things dim and calm, and always lay your baby down on their back in their own sleep space. This phase is hard, but it is temporary, and most babies settle much more easily by 3 to 4 months.

This article is for general information and isn’t a substitute for medical advice. If you’re worried about your baby’s sleep, crying or health, contact your pediatrician.