
It is common for newborns to cry in their sleep, and there are many reasons why. Newborns are still adjusting to life outside the womb and are getting used to new sensations and experiences. They may be hungry, gassy, uncomfortable, or overtired. They may also be in pain, too hot or cold, or simply transitioning between sleep cycles. Older newborns may be experiencing nightmares or bad dreams. If you are concerned about persistent crying, contact your GP or health visitor.
Characteristics of newborns crying in their sleep
| Characteristics | Values |
|---|---|
| Occurrence | Crying in sleep is entirely normal and common in newborns |
| Reasons | Hunger, nightmares, sickness, teething, stomach upset, gas, overtiredness, temperature, nappy change, Moro Reflex |
| Sleep patterns | Newborns sleep in shorter bursts and spend more time in REM sleep |
| Sleep training | Swaddling, white noise machines, pacifiers, establishing a daily routine, and a nighttime sleep routine can help |
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What You'll Learn
- Babies cry in their sleep due to hunger, nightmares, or sickness
- Newborns are noisy sleepers and often cry out in their sleep
- Babies sleep in shorter bursts and for longer overall
- Babies may struggle with transitioning between sleep cycles and self-soothing
- Fussiness is a normal part of development as babies adjust to new sensations and experiences

Babies cry in their sleep due to hunger, nightmares, or sickness
It is common for babies to cry in their sleep at some point. There are several reasons why a baby might be crying in their sleep, including hunger, nightmares, or sickness.
Newborns aged 1-3 months are still adjusting to life outside the womb and are likely to be developing a regular sleep schedule. At this age, babies often cry in their sleep or wake up crying if they are hungry. Establishing a daily routine and a nighttime sleep routine can help.
Babies might also cry in their sleep when they are sick, teething, or experiencing mild discomfort, like gas or a bubble in their tummy. If the crying becomes prolonged or is accompanied by other signs of distress, like a fever, unusual fussiness during the day, or difficulty feeding, caregivers should consider reaching out to a pediatrician for reassurance and advice.
Although it is unclear when nightmares begin, caregivers who think their baby is having a nightmare can try to soothe them by talking calmly or rubbing their back. If the baby wakes up after a nightmare, caregivers can comfort them and follow a soothing sleep ritual to help them get back to sleep.
It is important to note that babies have shorter sleep cycles than adults and spend more time in light sleep, which means there are more opportunities for them to cry, grunt, or make other noises in their sleep. Sleep patterns can also change rapidly over the first three years of life, and there is significant variation between individual children.
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Newborns are noisy sleepers and often cry out in their sleep
Newborns are new to the world and can't communicate in any other way but through crying. They might be hungry, as newborns are growing very fast and need to eat often, or they might be gassy. Remember to gently burp your baby after each meal, including night feedings. They might also be too hot or too cold, or they might need a fresh nappy. As your baby grows, you'll be able to better pinpoint what's happening.
If your baby cries out in their sleep, they might just be letting you know they're passing from one stage to the next. Often, they will simply settle back down again, but sometimes the change wakes them up. If your baby cries during the night, try leaving them for a moment or two to see if they can drift back into more restful sleep on their own. If the cry is more urgent and they seem unable to settle, offer brief, soft reassurances from the doorway.
Occasional crying in their sleep is normal and nothing to worry about. But if you are worried about persistent crying in longer bursts, you can contact your GP or health visitor.
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Babies sleep in shorter bursts and for longer overall
It's normal for newborns to cry in their sleep. Babies sleep in shorter bursts and for longer overall. They also have shorter sleep cycles than adults and spend more time in light sleep, or REM sleep, which is when they dream. This means that newborns have more chances to cry, whimper, or make other noises in their sleep.
Newborns are still adjusting to life outside the womb and are getting used to new sensations and experiences. They are also growing rapidly and need to eat often, so hunger is a common reason for crying. They are also born with undeveloped digestive systems, so stomach upset can be another cause of crying. In addition, newborns don't have full control of their bodies, so involuntary movements of their limbs, known as the Moro Reflex, can cause them to twitch or jerk in their sleep, which can also lead to crying.
As babies grow and develop, the reasons for their nighttime crying may change. For example, older babies develop their imaginations, which can lead to nightmares and crying at night. Additionally, they may experience more sleep regression around four months when they go through developmental changes, including changes to how they sleep.
If you're concerned about your baby's crying, it's important to talk to a doctor or healthcare professional. They can provide advice and help you choose sleep strategies that are suitable for your baby's needs and your cultural and family norms.
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Babies may struggle with transitioning between sleep cycles and self-soothing
It is entirely normal for babies to cry in their sleep. Newborns aged 1-3 months are still adjusting to life outside the womb and are growing rapidly, hence the need to feed often. Hunger is the most common reason for crying in newborns, who nurse or take a bottle every few hours. Babies might also cry in their sleep when they are sick, teething, or experiencing stomach upset as their digestive systems are not yet fully developed.
Babies have shorter sleep cycles than adults and spend more time in light sleep, or REM sleep, which is when they dream. They might appear unsettled, but these sorts of movements are just part of their natural sleep cycle. Babies also spend more time in rapid eye movement (REM) sleep than adults and might jerk or twitch, and their breathing may become irregular. They may also experience the Moro reflex, an involuntary movement of their limbs, which can cause them to twitch or cry in their sleep.
Babies who are just learning to sleep on their own may struggle with transitioning between sleep cycles and self-soothing. If your baby cries out in their sleep, they might just be letting you know they're passing from one stage to the next. Often, they will simply settle back down again, but sometimes the change wakes them up. If your baby cries during the night, try leaving them for a moment or two to see if they can drift back into more restful sleep on their own.
If you sense your baby is overtired, it's best to condense your usual bedtime routine and help your baby settle quickly. A baby that's melting down during the bedtime routine often just needs to sleep. Sometimes they're crying simply because they're exhausted! If your baby seems very tired, it is okay to speed up the routine or skip some steps. Bedtime routines for newborns should be brief and include just a few activities, such as changing their diaper, applying lotion or a soothing massage, swaddling, or changing into pajamas, and rocking them until they are drowsy.
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Fussiness is a normal part of development as babies adjust to new sensations and experiences
It can be distressing for parents to see their baby cry in their sleep, but it's important to remember that occasional crying during sleep is entirely normal and part of a baby's development. Fussiness is a typical part of a baby's growth as they adjust to new sensations and experiences.
Babies are born with an innate ability to recognize familiar sounds, such as their mother's voice, and they are also prepared to enjoy new experiences. As they grow, they continue to develop their senses and understanding of the world around them. For example, they may enjoy mobiles above their cribs because they move or make sounds when the baby touches them. As they get older, they will start to understand cause-and-effect relationships, such as shaking a rattle to reproduce a sound. This curiosity and experimentation with their environment are all part of their cognitive development.
During the first three years of life, sleep patterns change rapidly and vary significantly between individual children. Newborns, in particular, sleep in shorter bursts and spend more time in REM sleep, which is when they dream. They may appear unsettled, but these movements are a natural part of their sleep cycle. As they progress mentally, brain development can also make babies more unsettled and cause sleep regression. This is because they are experiencing many new sensations and mental leaps, which can be overwhelming.
If a baby is crying in their sleep, it could be for various reasons. They may be hungry, too hot or cold, or need a nappy change. Older babies might be teething or experiencing pain. If the crying persists and interferes with the baby's or caregiver's ability to function, it is recommended to speak to a doctor.
It's important to remember that each baby is unique, and cultural and family norms can also affect sleep expectations. Caregivers can seek advice from healthcare professionals to choose sleep strategies that work best for their baby and their family.
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Frequently asked questions
Yes, newborns are noisy sleepers and it is normal for them to cry in their sleep. They might be transitioning between sleep cycles, hungry, or experiencing brain development.
If your newborn is crying in their sleep, check their sleep environment to see if anything is disturbing them. If you know they are not hungry, wait a moment to see if the crying passes as they might be able to settle themselves.
Newborns cry in their sleep for various reasons. They might be hungry, too hot or cold, or need a nappy change. They could also be experiencing pain, having a nightmare, or transitioning between sleep cycles.
To soothe your newborn back to sleep, try swaddling them, using a pacifier, or playing white noise. You can also try to comfort them with a belly rub and a calming voice, but keep the check-in short so they get the message that it's time to sleep.













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