Colin Snow
Newborns often make noises in their sleep, and moaning is a common sound that many parents hear. While it can be alarming for new parents, it is usually nothing to worry about. There are many reasons why newborns make moaning sounds in their sleep, and in most cases, it is a natural part of their development.
| Characteristics | Values |
|---|---|
| Self-soothing | Moaning is a way for newborns to self-soothe and get back into a deeper sleep |
| Sleep cycles | Newborns experience sleep cycles differently than adults, spending 50% of their sleep time in REM sleep |
| Respiratory system | Babies are still learning to regulate their respiratory system, which can lead to strange sounds |
| Congestion | Newborns' tiny nasal passages tend to get congested easily, which can contribute to moaning |
| Teething | Moaning or groaning in older babies could be a sign of discomfort from teething |
| Sleep position | Sleeping in awkward positions is a symptom of sleep apnea, which can cause moaning |
| Hunger | Hunger can trigger extra movement and weird noises, especially if the baby falls asleep before finishing their evening feed |
| Meningitis | Constant moaning and high-pitched grunting can be a symptom of meningitis |
| Heart failure | Grunting, along with other symptoms, can indicate heart failure |
| Severe pain | Severe pain may cause a child to moan or whimper instead of crying |
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What You'll Learn
Newborns experience sleep cycles differently than adults
Newborns also experience a short REM stage almost immediately after falling asleep instead of at the end of the cycle, as is the case with adults. Adults do not experience REM sleep until they have been asleep for around 90 minutes. Babies' sleep cycles are usually about 40 minutes, so they tend to wake up more often.
Newborns' sleep patterns are mostly affected by the need to be fed. They will wake up when they are hungry, which is usually every 1 to 3 hours. Their sleep cycles can also be affected by teething, which can cause moaning or groaning due to discomfort.
As newborns grow, their sleep patterns will change. From about 3 to 6 months old, they will start to have less 'active' sleep and more 'deep' sleep. Their sleep will begin to "chunk" up, meaning they can link more than one sleep cycle together. By 6 months old, their sleep patterns will become more like those of adults, sleeping up to a total of 10 to 16 hours a day.
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Babies are still learning to regulate their breathing
Newborns often make noises in their sleep, and moaning is one of the most common sounds. While it can be alarming for new parents, it is usually nothing to worry about. Babies are still learning to regulate their breathing, which can lead to strange sounds.
Babies spend about 50% of their sleep time in REM sleep, which is when our most vivid dreams occur. In comparison, adults only spend around 15% of their sleep in this stage. Newborns also breathe through their noses, and their tiny nasal passages can easily get congested. This, along with their undeveloped digestive and respiratory systems, can result in irregular breathing patterns with faster, slower, or paused breathing.
During REM sleep, babies can moan and groan and make other vocalizations as they transition between different sleep stages. These sounds are a way for them to self-soothe and help themselves sleep better. As they move through sleep cycles, you'll notice periods of deep, peaceful sleep alongside noisy, grunty sleep.
If you're concerned about your baby's breathing, look for signs of distress or if they're working hard to breathe. Labored or rapid breathing can be indicated by flared nostrils, pulling muscles around the neck, or moaning/grunting at the end of a breath. In such cases, you should consult your doctor.
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Moaning could be a sign of discomfort
Moaning in sleep is very common in newborns and usually nothing to worry about. However, in some cases, it could be a sign of discomfort.
If your baby is older and teething, moaning could be a sign of discomfort. If your baby sleeps through the moaning, you can leave them be, but if they wake up and cry, they might be in pain and probably need something from you. If you have any concerns about your child's sleep health, it's best to consult your doctor.
If your baby is less than 1 month old and has a fever or looks sick, this could be a sign of an infection. During the first month of life, infections can progress very fast, so these symptoms are serious until proven otherwise. Other signs that your newborn is in pain or discomfort include constant, nonstop crying, refusing to play or be distracted, and being very hard to console.
In some cases, constant grunting while sleeping can be a symptom of meningitis in babies. High-pitched grunting and constant moaning can be a warning sign, and you should seek immediate medical assistance if you think your baby might have meningitis. Grunting can also indicate heart failure, and you should get medical attention if you think your baby is showing any symptoms of this.
In newborns, moaning in sleep is usually nothing to worry about and is often a sign that they are transitioning between different stages of sleep. Newborns spend 50% of their sleep time in REM sleep, compared to only 15% for adults, and this stage of sleep is characterised by vocalisations, movements, and grimaces. Moaning can also be a way for babies to self-soothe and get back into a deeper sleep.
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Moaning during transition between sleep stages
Moaning during sleep is very common in newborns and infants. Babies tend to make a lot of noise while sleeping, including moaning, grunting, snoring, whimpering, sighing, gurgling, and crying. These noises are usually no cause for concern and are often a source of comfort for parents, indicating that their child is about to fall asleep.
Newborns experience sleep differently than adults. They spend about 50% of their sleep time in REM sleep, compared to only 15% for adults. REM sleep is associated with irregular breathing, twitchiness, and eye movements under closed eyelids. Babies also have shorter sleep cycles and are constantly transitioning between stages of wakefulness. During the transition between different stages of sleep, they might moan or make other noises.
The moaning and groaning during sleep are more common in newborns and tend to lessen as they grow older. By the time a baby is 3-5 months old, their sleep cycles begin to shift into more adult-like sleep stages, and you will likely notice that they are making much less noise while sleeping. Most baby sleep noises should stop entirely by the end of the first year, although some children will still be naturally louder sleepers.
The reasons behind baby sleep noises include the fact that newborns are nasal breathers, and their tiny nasal passages tend to get congested easily. Additionally, their digestive systems are still developing, so they might make noises related to hunger, passing gas, or having a bowel movement.
While most baby sleep noises are harmless, there are some noises that may indicate a problem. If you notice labored or rapid breathing, flared nostrils, or pulling muscles around the neck, it could be a sign of respiratory distress or other health concerns. In such cases, it is important to consult a healthcare professional.
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Moaning as a way to self-soothe
Moaning in sleep is very common in newborns. It is usually nothing to worry about, and is often a source of comfort for parents, who know that their child is about to fall asleep.
Sleep expert Natalie Nevares says that "most babies make LOTS of noises in their sleep". She adds that newborns experience sleep cycles differently from adults, spending 50% of their sleep time in REM sleep, compared to 15% for adults. This is a light sleep cycle, and Dr. Sarah Mitchell, a baby sleep expert, says that this stage of sleep in newborns is "characterized by vocalizations as well as grimaces, and movements".
Babies are noisy sleepers because they are able to move and make sounds while in REM sleep. Moaning is a natural way for babies to self-soothe, and to help themselves sleep better. They are trying to get back into a deeper sleep.
However, there are some noises to look out for. If your baby is older and teething, moaning could be a sign of discomfort. If they wake up and cry, they probably need something from you. Grunting while sleeping can be a symptom of meningitis, or, in some cases, heart failure. If you are concerned about your baby's sleeping noises, it's best to consult your doctor.
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Frequently asked questions
Newborns often moan in their sleep because they experience sleep cycles differently than adults. They spend 50% of their sleep time in REM sleep, whereas adults only spend about 15% of their sleep time in this stage. Moaning during sleep can also be a way for babies to self-soothe.
It is normal for newborns to make noises such as moaning, grunting, squeaking, and snoring in their sleep. This is because newborns are still learning to regulate their breathing and their digestive and respiratory systems are still developing.
If your newborn is sleeping through the moaning and does not appear to be in distress, you can leave them be. However, if they wake up crying, they may need something from you, such as a feed or a nappy change. If you are concerned about your newborn's moaning, consult your doctor.
