
Babies have shorter sleep cycles than adults and spend more time in light sleep, which means they are more likely to cry, grunt, or make other noises in their sleep. Crying out in sleep is not dangerous or a sign of a serious problem, and sooner or later, almost all babies do it. There are many reasons why a 10-month-old baby might cry in their sleep, including hunger, an uncomfortable room temperature, illness, or developmental issues. Establishing a soothing bedtime routine can help babies sleep better, and if a baby is crying, it is usually best to give them some time to settle down before intervening.
| Characteristics | Values |
|---|---|
| Nightmares | Occur during light sleep |
| Night terrors | Occur during deeper sleep phases, rare in babies under 18 months old |
| Overactive startle reflex | Can cause babies to wake up crying |
| Hunger | Crying may be a sign of hunger |
| Discomfort | A dirty diaper, a soiled sheet, or an uncomfortable room temperature can cause crying |
| Illness | Fever, stomachache, congestion, or other illnesses can cause crying |
| Sleep regression | Babies may cry due to attachment to a bedtime routine or a sleep prop |
| Separation anxiety | Crying may be due to anxiety about being alone or separated from a parent |
| Environmental factors | Too much visual stimulation or loud noises can disrupt sleep |
| Sleep training | Inappropriate or ineffective sleep training methods may contribute to crying |
| Individual differences | Every baby is unique and may have different needs and tendencies |
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What You'll Learn

Nightmares or night terrors
Nightmares occur during light sleep, or random eye movement sleep. They are common in children who are able to express their fears and dreams. However, researchers don't think that babies have nightmares as they lack the ability to express their fears and dreams. It is only when children develop a vocabulary that they can be asked about their dreams.
Night terrors, on the other hand, occur when a child becomes very agitated during the deeper phases of sleep. They are relatively rare and usually occur in children aged between 4 and 12 years old. However, people have reported possible night terrors in babies as young as 18 months old. Night terrors may be more likely to occur if a child is sick or sleep-deprived. They can also be encouraged by over or under tiredness, late dinners, quick bedtimes, too much stimulation before bed, and too much light in the room.
Babies have shorter sleep cycles than adults and spend more time in light sleep, which means there are more chances for them to cry, grunt, or make other noises in their sleep. It is common for infants and toddlers to cry out when they wake during the night, but that does not necessarily mean they are having a nightmare. Babies also tend to have an overactive startle reflex that can often look like they have woken up from a bad dream. However, this can be easily addressed by patting them on the back or touching them gently to help them back to sleep.
Babies also tend to wake up crying due to hunger or discomfort. They may also be crying due to a dirty diaper, a room that is too hot or cold, or a wet crib sheet. Illnesses such as fever, stomachache, or congestion can also cause babies to wake up crying.
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Hunger or illness
Hunger is a common reason for a 10-month-old to cry in their sleep. Babies have shorter sleep cycles than adults, spending more time in light sleep, and they wake up more frequently to feed. Younger babies go through growth spurts that make them extra hungry, and they may wake up crying during the night if they need to be fed.
If your 10-month-old is crying in their sleep, check to see if they are hungry. If feeding soothes them, it may be a phase that will resolve on its own in a few days. However, if your baby is inconsolable and crying night after night, it may be a good idea to check in with your doctor.
Illness is another reason why a 10-month-old may be crying in their sleep. Babies rely on crying to communicate their needs, and tears are often their primary way of telling you they are sick. If your baby is ill, they will turn to you for comfort, no matter the time of day or night. Illnesses such as fever, vomiting, ear infections, body aches, congestion, or stomachaches can wake your baby suddenly, causing them to cry or scream in the middle of the night.
If your baby feels hot, check them for a fever. If they seem inconsolable or are rubbing or tugging at their ears, eyes, or nose, they may be trying to tell you they are unwell. Other signs of illness include mood changes, changes in appetite, fussiness, lethargy, diarrhoea, and symptoms of an ear infection. Mild illnesses can often be managed at home with over-the-counter medication, but more severe symptoms warrant a call to the doctor.
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Room temperature
A 10-month-old baby's crying in sleep is a common occurrence and can be attributed to various factors. One of the main reasons could be separation anxiety, a normal stage of development during this period. Establishing a consistent bedtime routine can help alleviate this. A warm bath, followed by stories or singing, can signal bedtime and help your baby relax and prepare for sleep.
Another factor that can impact your baby's sleep is room temperature. Maintaining a comfortable room temperature is crucial for your baby's sleep and overall well-being. The ideal room temperature for a baby's sleep is between 68 and 72°F (20-22°C). Dress your baby appropriately for the room temperature and avoid overbundling them. Keep an eye out for signs of overheating, such as sweating or feeling hot to the touch.
Additionally, it is recommended to keep the baby's room dark and free from visual distractions. Blackout shades or curtains can help create a soothing environment conducive to sleep. White noise or similar consistent noise can also aid in blocking out external sounds that might disturb your baby's sleep.
It is important to remember that every baby is unique and has individual needs. Some babies may experience sleep regressions or disruptions due to developmental milestones, teething, or illness. If you have concerns about your baby's sleep patterns or notice any unusual behaviours, it is always best to consult a healthcare professional for personalised advice.
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Sleep training
There could be many reasons why a 10-month-old baby cries in their sleep. Firstly, it is important to note that sleep can be challenging for babies, especially in the early months and years. Crying out in sleep is common, and babies have shorter sleep cycles than adults, spending more time in light sleep. This means there are more chances for them to cry, make noises, or move around in their sleep.
Additionally, there could be environmental factors causing discomfort, such as a room that is too hot or cold, a wet diaper, or an uncomfortable sleeping position. Babies may also wake up crying due to illness, such as a fever, stomachache, or congestion.
Moreover, developmental milestones and changes, such as learning new skills like sitting up, crawling, or understanding object permanence, can lead to sleep regressions and disruptions. This is a positive sign of your baby's growth and can cause increased separation anxiety, resulting in more frequent waking or crying during sleep.
Lastly, babies may cry in their sleep due to nightmares or night terrors, although night terrors are more common in older children and usually occur after the age of 18 months.
- Cry-it-out method (CIO): This involves putting your baby to bed when they are tired but still awake and letting them cry themselves to sleep without intervention, unless they need feeding, changing, or are unsafe. This method helps babies adopt a more regular sleep pattern.
- Ferber method: This moderate involvement technique involves placing the baby in their crib when they are tired but awake, saying goodnight, and leaving the room. You then re-enter the room at gradually increasing intervals to check in on your baby without picking them up.
- Disappearing chair method: This higher involvement method involves sitting in a chair in the baby's room as they start to fall asleep. Each night, the chair is moved a little further away from the crib until it is eventually out of the room, providing a sense of comfort and presence to the baby.
- Pick-up/Put-down method: This higher parental involvement method involves entering the room and picking up the baby each time they protest, placing them back down when they are drowsy, and repeating as needed.
- Soothing bedtime routine: Establishing a calming and consistent bedtime routine can help relax your baby. This may include activities such as a warm bath, reading stories, or singing, which signal the end of the day and can be used consistently at bedtime.
- Consistent daily routine: Creating a consistent daily routine, including nap times and wake windows, is important for healthy sleep. It is recommended to transition to 2 naps a day for 8-10-month-old babies.
Remember, sleep training may involve some tears, so choose a method that aligns with your family's values and comfort level. Always consult with a healthcare professional or pediatrician for advice and to ensure your baby's safety and well-being.
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Separation anxiety
It is not uncommon for babies to cry in their sleep or wake up crying. Crying out in sleep is usually not a sign of a serious problem, and it is something that almost all babies do at some point.
Babies have shorter sleep cycles than adults and spend more time in light sleep, which means they are more likely to make noises in their sleep. They may also be crying because they are hungry, or because they are uncomfortable due to a dirty diaper, a room that is too hot or cold, or a wet crib sheet. Illnesses such as fever, stomachache, or congestion can also cause babies to wake up crying.
To help manage separation anxiety, it is important to create a consistent and soothing bedtime routine. This can include activities such as a warm bath, reading stories, or singing, which signal the end of the day and help relax the baby. It is recommended to put the baby in their crib while they are drowsy but still awake, as this can help them learn to fall asleep independently. If the baby cries, it is advised to wait a few minutes before going in to soothe them, as they may settle down on their own.
During the day, parents can practice short goodbyes and play separation games like peek-a-boo to help reinforce that the parent will come back. Transitional objects, such as loveys or comfort objects, can also be introduced when the baby is over 12 months old to provide extra reassurance. It is important not to reward the baby's behavior by immediately running to comfort them or taking them to bed with you, as this may reinforce crying as a way to prevent separation. Instead, verbally comfort them, offer brief reassurance, and encourage them to go back to sleep.
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Frequently asked questions
There are many reasons why a 10-month-old may cry in their sleep. Firstly, it's important to rule out any physical discomfort, such as a dirty diaper, a room that's too hot or cold, or illness. Secondly, consider whether your baby is hungry or experiencing separation anxiety. Finally, it could be due to their sleep environment, such as too much light or noise, or a lack of soothing bedtime routine.
If your baby is physically uncomfortable, address their needs by changing their diaper, adjusting the room temperature, or treating any illnesses. If they are hungry, offer a quick feed. For separation anxiety, try a consistent and calming bedtime routine, such as a warm bath followed by stories or singing. You can also try stroking their tummy and speaking in a calming voice.
Establish a soothing bedtime routine and a consistent sleep environment. Make sure the room is dark and boring, with minimal distractions, and use white noise to mask any loud or unpredictable noises. Ensure your baby is fed and comfortable before sleep, and that they are dressed appropriately for the room temperature.










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