Important: This page is educational and not a diagnosis. If your baby has trouble breathing, turns blue/grey, is very difficult to wake, has a fever, refuses feeds, or seems very unwell, seek medical care urgently.
Newborn Sleep and Discomfort: Why Your Baby Won’t Settle
Newborn sleep can feel confusing.
One minute your baby is asleep.
The next minute they are grunting, squirming, crying, stretching, or waking again.
Many parents search:
- “why won’t my newborn sleep?”
- “newborn uncomfortable while sleeping”
- “baby grunting and squirming at night”
- “newborn wakes up crying”
- “baby won’t settle after feeding”
- “newborn sleep patterns”
The good news: many strange newborn sleep behaviors are normal.
But some signs can point to discomfort, overtiredness, reflux, gas, or something that needs medical attention.
This guide explains:
- what normal newborn sleep looks like
- why babies seem uncomfortable at night
- common causes of newborn sleep disruption
- safe ways to help your baby settle
- and when to call your pediatrician
What newborn sleep really looks like
Newborn sleep is not like adult sleep.
Newborns usually:
- sleep in short stretches
- wake often to feed
- make noises during sleep
- move, grunt, and wiggle
- have irregular breathing patterns
- need help settling
Many newborns sleep around 14–17 hours across 24 hours, but not in one long stretch.
They may sleep:
- 30 minutes
- 1 hour
- 2 hours
- sometimes longer
This can be normal.
Why newborn sleep is so broken
1) Tiny stomachs
Newborns need frequent feeds because their stomachs are small.
That means they wake often, especially in the early weeks.
2) No mature day-night rhythm yet
Newborns do not fully understand day and night.
Their circadian rhythm is still developing.
This is why some babies sleep more during the day and seem wide awake at night.
3) Short sleep cycles
Newborn sleep cycles are short.
They move between lighter and deeper sleep often.
During light sleep, they may:
- wiggle
- grunt
- make faces
- breathe unevenly
- briefly wake
- cry out
This does not always mean they are fully awake.
4) Active sleep
Newborns spend a lot of time in active sleep.
During active sleep, babies may:
- twitch
- smile
- frown
- stretch
- make noises
- move arms and legs
- breathe irregularly
Parents often think baby is uncomfortable, but sometimes baby is simply sleeping.
Why newborns seem uncomfortable while sleeping
Newborns often look like they are struggling even when nothing serious is happening.
They may:
- grunt
- strain
- kick
- curl legs up
- turn red
- squirm
- wake crying
This can happen because their digestive and nervous systems are still developing.
Common causes of newborn sleep discomfort
1) Gas
Gas is one of the most common reasons babies seem uncomfortable at night.
Babies may swallow air while feeding or crying.
Signs it may be gas
Baby may:
- pull knees toward belly
- squirm or grunt
- pass gas after crying
- calm after burping
- wake shortly after being laid down
What can help
- Burp during and after feeds
- Keep baby upright after feeding
- Try bicycle legs when baby is awake
- Use gentle tummy massage
- Make sure bottle nipple flow is not too fast
2) Reflux
Reflux can make sleep uncomfortable because lying flat may allow milk to come back up.
Signs it may be reflux
Baby may:
- spit up often
- cough or gag after feeding
- arch their back
- cry when laid flat
- settle better when held upright
What can help
- Feed smaller amounts more frequently
- Burp well
- Keep baby upright after feeds
- Avoid tight clothing around the belly
Safe sleep still matters: babies should sleep on their back on a firm, flat surface unless your doctor gives different medical instructions.
3) Overtiredness
An overtired newborn may fight sleep hard.
This happens when baby stays awake longer than their body can handle.
Signs of overtiredness
Baby may:
- cry intensely
- arch their back
- stare away
- yawn repeatedly
- rub eyes
- become harder to soothe
- fall asleep then wake quickly
What can help
- Watch for early sleepy cues
- Keep wake windows short
- Use a calm bedtime routine
- Reduce lights and noise
- Help baby settle before they become frantic
4) Hunger
Sometimes newborns wake because they simply need to eat.
Signs it may be hunger
Baby may:
- root
- suck hands
- turn toward breast or bottle
- make sucking motions
- become increasingly upset if not fed
Crying is often a late hunger cue.
Try responding to earlier signs when possible.
5) Startle reflex
The newborn startle reflex can wake babies suddenly.
They may throw their arms out and cry.
What can help
- Swaddling may help young babies who are not rolling yet
- Use a safe sleep sack
- Keep sleep space calm
- Avoid sudden loud noise
Stop swaddling once baby shows signs of rolling.
6) Temperature discomfort
Babies may wake if they are too hot or too cold.
Signs baby may be too hot
- sweating
- damp hair
- flushed skin
- heat rash
- rapid breathing
Signs baby may be cold
- cool chest or back
- unsettled sleep
- cold hands and feet can happen normally, so check the chest
A good rule: dress baby in one more light layer than an adult would comfortably wear.
Avoid overheating.
7) Wet or dirty diaper
Some babies sleep through wet diapers.
Others wake quickly, especially with:
- diaper rash
- sensitive skin
- stool
- tight diaper
Check diaper fit and skin irritation if baby wakes uncomfortable.
8) Too much stimulation
Newborns can become overstimulated easily.
Too much light, noise, visitors, play, or handling can make settling harder.
Signs of overstimulation
Baby may:
- look away
- hiccup
- cry suddenly
- stiffen
- become wide-eyed
- struggle to latch or sleep
What can help
- Dim lights
- Reduce noise
- Hold baby calmly
- Use white noise
- Keep night interactions boring
