Grunting, squeaking, twitching, sucking motions, irregular breathing and even a brief cry can all happen while a newborn is still asleep. This lighter stage is called active sleep. If your baby's eyes remain closed, their color looks normal and the noise settles, they may not need to be woken at all.
Important: A noise during sleep is different from struggling to breathe. Get urgent medical help if your baby turns blue, gray or unusually pale, has repeated grunting with nearly every breath, pulls in around the ribs, flares their nostrils, is difficult to wake, or appears unable to breathe comfortably.
What Active Sleep Looks and Sounds Like
Newborn sleep is different from adult sleep. The American Academy of Pediatrics describes active sleep as a rapid-eye-movement stage in which a baby may twitch or jerk their arms and legs, move their eyes under closed eyelids and breathe less regularly. Babies can also make faces, suck, smile, whimper or briefly cry.
These movements can look surprisingly dramatic. They do not automatically mean your baby is awake, in pain or ready to feed. Active sleep often alternates with quieter, deeper sleep throughout the same nap.
Active Sleep or Awake?
| More consistent with active sleep | More consistent with waking |
|---|---|
| Eyes remain closed | Eyes open and stay open |
| Brief grunts, squeaks or cries that stop | Crying becomes sustained or grows stronger |
| Twitching, stretching or facial movements | Purposeful rooting or searching for a feed |
| Baby settles without help | Baby remains alert and seeks comfort |
If your baby is in a safe sleep space and looks comfortable, pause for a moment before intervening. Picking up a sleeping baby can fully wake them. If the sound continues, their eyes open or the cry becomes steady, check whether they need feeding, a diaper change or comfort.
Why Newborn Sleep Is So Loud
Newborns spend a large share of sleep in active sleep, and their transitions between sleep states are still developing. Their small nasal passages, normal startle reflex, digestion and frequent feeds can add snorts, stretches and grunts to the soundtrack. A noisy stretch near morning can still be sleep.
Brief changes in breathing rhythm can also occur during active sleep. What matters is the whole picture: normal skin color, comfortable breathing between sounds, normal feeding and the ability to wake normally.
Keep Sleep Safe, Even When It Is Noisy
Place your baby on their back for every sleep on a firm, flat sleep surface with only a fitted sheet. Do not use wedges, pillows, positioners or an inclined mattress to address grunting, congestion or spit-up. If your baby falls asleep in a swing, bouncer or car seat outside travel, move them to an approved flat sleep space as soon as practical.
When Noisy Breathing Needs Medical Help
Contact a medical professional promptly if noisy sleep comes with:
- Grunting with most breaths rather than occasional sleep noises
- The skin pulling in between or beneath the ribs
- Nostrils widening with each breath
- Blue, gray or unusually pale lips, tongue or skin
- Feeding difficulty, unusual sleepiness or difficulty waking
- A fever in a baby younger than 3 months
Trust your concern. A clinician can listen to your baby's breathing and distinguish normal sleep sounds from congestion, infection or respiratory distress.
Frequently Asked Questions
Is it normal for newborns to grunt and squeak in their sleep?
Yes. Brief grunts, squeaks, twitches and small cries can occur during active sleep, especially when a baby's eyes stay closed and their color and breathing remain comfortable.
How can I tell if my newborn is awake or in active sleep?
A baby in active sleep usually keeps their eyes closed, makes brief or changing sounds and settles again. An awake baby is more likely to keep their eyes open, cry steadily, root or seek interaction.
When should newborn grunting worry me?
Get medical help if grunting happens with nearly every breath or comes with blue or gray color, ribs pulling inward, nostril flaring, feeding trouble, unusual sleepiness or obvious breathing difficulty.
Sources
This guide was fact-checked against the following guidance on July 14, 2026:
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