Your baby grunts and thrashes in their sleep because they're in active sleep (REM), a lighter sleep stage where newborns have more movement and noise as their immature digestive and nervous systems work, learning to digest milk, pass gas, and coordinate muscles for pooping. While usually normal, it's often linked to developing digestive processes, nasal congestion, or gas, but if it sounds like distressed breathing or is accompanied by other concerning signs, consult a doctor.
Whether it's grunting, squeaking, sighing, or squirming, a newborn making noises while sleeping is developmentally normal. These sounds don't necessarily mean your baby is uncomfortable or waking up! Even if your baby is sleeping soundly, these nighttime noises can leave you feeling more tired than ever.
Babies move in their sleep because they spend more time in active (REM) sleep and, in newborns, because of the Moro reflex. Most movement – kicking, twitching, grunting – is normal and not a cause for concern. A consistent bedtime routine and age-appropriate schedule can help reduce sleep disruptions.
No, SIDS (Sudden Infant Death Syndrome) typically happens silently, with no cries or signs of struggle, which is why it's so tragic and unexpected, although some minor breathing issues or congestion might appear in the weeks prior, but these aren't direct predictors of SIDS itself. Healthy newborns make normal noises like grunting or gurgling during sleep, but specific alarming sounds (like fast, labored breathing or grunting with each exhale) can signal illness, not SIDS.
If you're enrolled in my sleep programs or followed me for a while, you'll know I'm passionate about winding and burping ALL babies. In my clinical experience, it's the number one cause of unsettled behaviour. Trapped wind can cause babies to grunt, gurgle, squirm, arch their backs, and cry out in pain.
1. Risk of Suffǒcation When a baby is on their stomach, their nose and mouth can get pressed against the mattress or blanket, making it harder for them to breathe. Unlike adults, babies don't yet have strong neck muscles to lift or turn their heads easily if their airway is blocked.
But when your infant has painful gas, especially if it's frequent, it can cause your baby to cry or become fussy—until it's passed; unlike colic, which causes crying and fussiness that lasts for hours across days and weeks. Gas can have distinctive symptoms, too, such as a swollen-looking belly.
SIDS has no symptoms or warning signs.
At what age is autism diagnosed? Age of autism diagnosis and early signs of autism can vary widely from child to child. Some children show early signs of autism within the first 12 months of life. In others, autism signs may not show up until 24 months of age or later.
Some reasons for your baby's grunting include digestive issues, sleep transitions, active sleep, and nasal congestion. If your baby's grunting is accompanied by other symptoms such as labored breathing, skin or lips turning blue, fast breathing, a fever, or lethargy, contact their pediatrician right away.
Baby sleep red flags signal potential issues beyond normal fussiness, including breathing problems (snoring, pauses in breath, mouth breathing), feeding/growth issues (poor weight gain, oral aversion), excessive daytime tiredness despite sufficient night sleep, extreme irritability/pain, severe restlessness, or signs of allergies/reflux (arching back, vomiting, rash), all warranting a check with a healthcare provider, as these can indicate medical conditions or underlying problems, says Intuitive Parenting, The Royal Children's Hospital, and My Sweet Sleeper.
Colicky crying is louder, more high-pitched, and more urgent sounding than regular crying. Colicky babies can be very hard to calm down.
The risk for SIDS is increased predominantly for the prone sleeping position. The lateral sleeping position shows an increased risk intermediate between that for prone and supine sleep for both usual and last sleep, but neither increase is significant after adjustment for potential confounders.
The 7 key danger signs for newborns, often highlighted by organizations like the WHO, are not feeding well, convulsions, fast breathing, severe chest indrawing, lethargy/unconsciousness (movement only when stimulated), high or low temperature, and jaundice (yellow skin/soles) or signs of local infection like an infected umbilical stump, requiring immediate medical attention.
The hardest week with a newborn is often considered the first six weeks, especially weeks 2-3, due to extreme sleep deprivation, constant feeding demands, learning baby's cues, postpartum recovery, and a peak in inconsolable crying (the "witching hour"), making parents feel overwhelmed as they adjust to a new, exhausting routine. While the first week is tough, the challenges often intensify as the baby becomes more alert but still fussy, with major developmental hurdles like cluster feeding and increased fussiness peaking around 6-8 weeks.
The "5-3-3" baby sleep method is a sleep training strategy where a baby sleeps for 5 hours, stays awake for 3 hours, then sleeps for another 3 hours, often used around 4-6 months to encourage independent sleep by reducing nighttime feeds and establishing routine, but it requires strict adherence and consulting a pediatrician, as it might be too rigid for some babies or caregivers.
Around 90% of autism cases are attributed to genetic factors, meaning autism is highly heritable, with many different genes contributing, rather than a single cause, often interacting with environmental influences during early brain development, though specific environmental factors don't cause it but can increase risk. Twin studies show strong genetic links, with concordance rates between 60-90% in identical twins, and research points to complex interactions of many genes and prenatal/perinatal factors.
Reaching to one's own forehead in response to a marked mirror image has traditionally been conceptualized as an important, initial measure of self awareness (the mirror self recognition test, or MSR, e.g. Gallup, 1970) and it typically emerges between the ages of 18 and 24 months (Bertenthal and Fischer, 1978).
The "6-second rule" for autism is a communication strategy where a speaker pauses for about six seconds after asking a question or giving information, giving the autistic person extra time to process it without feeling rushed, which helps reduce anxiety and allows for a more thoughtful response, reducing frustration for both parties. Instead of repeating or rephrasing, which can be confusing, you wait, and if needed, repeat the exact same words after the pause.
Infants are at the highest risk for SIDS during their first 6 months of life. Most SIDS deaths occur when babies are between 1 and 4 months of age.
Pacifiers may help reduce the risk of SIDS because sucking on a pacifier can bring baby's tongue forward, opening the airway a bit. In other cases, a pacifier doesn't allow a baby to sleep as deeply, reducing the risk the baby stops breathing.
The "Colic 333 Rule" is a common guideline for identifying colic in a healthy, well-fed baby: crying for more than 3 hours a day, for more than 3 days a week, for more than 3 weeks. While it's a helpful way to recognize persistent, intense crying spells, it's not a strict diagnosis, and you don't need to wait three weeks to seek help if you're concerned. Colic usually peaks around 6 weeks and lessens by 3-4 months, but it's important to rule out other issues with a doctor.
Reflux. Reflux and colic are closely related and are often confused. Reflux can also be caused by oversupply and both are more often a problem when a baby is given large feeds with long gaps in between. A baby who has reflux often spits up milk and cries more when he is lying down or is in a car seat.
Newborn reflux
Some babies will make gurgling or gulping sounds during or after feeds. Reflux can cause newborn fussiness, back arching and a lot of spit up.