
Night sweats in toddlers are a common occurrence and usually nothing to worry about. However, if your one-year-old is sweating in their sleep, it could be due to various factors, such as a warm sleeping environment, over-bundling, or natural physiological responses. It's important to maintain a cool and comfortable sleep environment for your toddler, as their immature nervous system may not be able to regulate body temperature effectively yet. Additionally, toddlers spend more time in REM sleep, which increases their heart rate and makes them more prone to sweating. While it's usually not a cause for concern, persistent night sweats could indicate underlying health issues such as sleep apnea, hormone disorders, or other medical conditions, so consulting a pediatrician is recommended if you're concerned.
| Characteristics | Values |
|---|---|
| Is it normal? | Yes, it's very normal for a child to sweat at night. |
| Reasons | Spending more time in REM sleep than adults, immature nervous system, overactive sweat glands, underlying health issues, sleep environment, over-bundling, infections, fever, sleep apnea, hormone disorders, or other medical conditions. |
| Prevention | Keep the bedroom cool, avoid heavy blankets, use sheets with temperature-regulating technology, dress in lightweight and breathable clothes, maintain a consistent sleep routine. |
| When to seek medical attention | If your child is younger than 3 months old and has a fever with a rectal temperature of 100.4°F (38°C) or over 3 months old with a fever of 102°F (38.9°C) or higher, consult a doctor. Also, consult a doctor if your child has repeated night terrors or if you suspect hyperhidrosis. |
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What You'll Learn

It's normal for toddlers to sweat in their sleep
It is normal for toddlers to sweat in their sleep. Night sweats are common in children of all ages, especially in babies and toddlers. There are a number of reasons why your toddler may be sweating in their sleep. Firstly, babies and toddlers spend more time in REM sleep, a deep sleep stage, than adults and older children. During this stage, their heart rate increases, making them more prone to sweating at night. Secondly, toddlers have more sweat glands per square foot than adults, and their nervous systems are not yet able to regulate their body temperature as effectively as adults can.
If your toddler is sweating in their sleep, it is not necessarily caused by bedding or pyjamas that are too warm. Your toddler might wake up sweaty despite their room being a cool temperature. However, you can help keep your child cool and comfortable at night by ensuring their sleep environment stays between 65 and 72°F (20 to 22°C). If the room doesn't have a thermometer, you can purchase a portable one to keep track. Many baby monitors also report the room temperature. You can also dress your toddler in lightweight, breathable clothes, such as regular cotton instead of fleece, and remove layers as needed. For babies under the age of 1, skip blankets, pillows, and stuffed animals altogether.
In some cases, night sweats in toddlers can be caused by underlying health conditions. For example, your toddler may be sweating because they are fighting a cold or infection. A fever is a telltale sign of infection, so be sure to take your toddler's temperature. If your child has a cold, the symptoms will typically last a little over a week. Night sweats can also be caused by asthma, allergies, sleep apnea, or hyperhidrosis, which is a condition that causes excessive sweating. If you suspect that your toddler's night sweats are caused by an underlying health condition, talk to your child's doctor. They can perform testing to diagnose your child and determine the appropriate treatment.
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Keep your child's room cool
While it is normal for toddlers to sweat in their sleep, there are several ways to keep your child's room cool. Here are some tips to help you achieve this:
Maintain a Cool Room Temperature
Keep your child's room within a comfortable temperature range. The ideal sleeping temperature for babies is between 65 and 72°F (20 to 22°C). You can use a portable thermometer or a baby monitor with a built-in thermometer to keep track of the room temperature. Additionally, during the daytime, close the curtains, blinds, or shutters to block out the sunlight and prevent the room from heating up.
Encourage Air Circulation
Open windows and bedroom doors to allow fresh air to circulate and create a pleasant breeze. This will help prevent the room from becoming stuffy and uncomfortable. You can also use fans to enhance air circulation, but be sure to position them away from your child to avoid direct airflow, as this could be unsafe.
Adjust Your Child's Sleepwear and Bedding
Dress your child in lightweight, breathable clothing made from absorbent, natural fibres like cotton, viscose, silk, or lyocell. These fabrics absorb sweat effectively. Avoid overdressing your child, and stick to one layer of pajamas. For babies, a thin sleeping bag made from absorbent fabric may be a good option. Additionally, ensure there aren't too many blankets on their bed, and skip blankets, pillows, and stuffed animals for babies under one year old to reduce the risk of suffocation.
Hydration
Ensure your child stays hydrated throughout the day by providing them with enough liquids, such as breast milk, formula, or water, depending on their age. Dehydration can disrupt their sleep and make them more susceptible to overheating.
Cool-Down Bath or Shower
Before bedtime, give your child a lukewarm bath or shower to help them cool down. Avoid extremely cold water, as it may cause an adverse reaction and make the body heat up. A cool flannel soaked in lukewarm water can also be used to gently rub their body, especially the head and back of the neck, to provide a cooling effect.
By following these tips, you can help keep your child's room cool and create a comfortable sleeping environment for them, even during hot weather.
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Avoid over-bundling your child
It is normal for a child to sweat in their sleep, and it is usually not a cause for concern. Babies and toddlers spend more time in REM sleep, a deep sleep stage, than adults and older children. During this stage, their heart rate increases, making them more prone to sweating at night. Babies and toddlers also have immature nervous systems, meaning they cannot regulate their body temperature as well as adults.
Over-bundling your child can be dangerous and even deadly. It is a natural instinct to protect your child from the cold, but it is important to remember that babies require more insulation than adults, but not to the extent that they are too warm. The American Academy of Pediatrics (AAP) states that babies only require an additional layer or two above what an adult is wearing to be warm and comfortable without overheating. Overdressing your baby can put them at risk of sudden infant death syndrome (SIDS), dehydration, and overheating.
If your child is in a car seat or stroller, do not bundle them up too much, as this can cause them to slip from the confines of the seat or stroller, reducing their protection in the event of an impact. The AAP recommends that your child should go into the car seat wearing minimal jackets and outerwear. Once they are securely strapped in, you can add blankets layer by layer, ensuring they are removable so that your baby is comfortable and safe.
If your baby is sweating while sleeping, they are wearing too many layers. It is recommended to use a light one-piece bodysuit or sleeper with the thermostat set between 68 degrees F and 72 degrees F. If you cannot keep the room at 68 degrees, do not add blankets, as these can cover your baby's face. Instead, use a sleep sack, which is made with breathable fabric and does not tangle.
Babies need to be able to lose some heat to regulate their system. Over-bundling in a warm room can weaken a baby's breathing pattern and prevent them from waking up to begin breathing normally. It is recommended to keep the room at a comfortable temperature for yourself, as if you are comfortable, your baby likely is too.
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Night terrors may cause sweating
Night terrors are a potential cause of toddlers sweating in their sleep. They are a sleep disruption similar to a nightmare but much more dramatic. It typically involves shouting, screaming, thrashing around, sweating, and an increased heart rate. Although night terrors are harmless, they can be frightening for parents and caregivers.
Night terrors are episodes of screaming and flailing that occur while a child is still sleeping. They happen within the first two to four hours of falling asleep, and the child will experience intense fear and may even sleepwalk. Unlike nightmares, children won't remember their night terrors the next day.
Night terrors occur when there is an overstimulation of the central nervous system (CNS) during sleep. They are a fear reaction that occurs as children transition from deep NREM sleep to light REM sleep. During this transition, a small part of the child's brain that controls their voice and movements remains relatively alert, resulting in a fear response.
Night terrors are most common in preschool-aged children around three to four years old. However, they can also occur in toddlers as young as 18 months to two years old. They are far less common in older children and usually resolve by the time a child reaches puberty.
If your one-year-old is experiencing night terrors, there are some strategies you can try to help reduce their occurrence. Maintaining a consistent and relaxing bedtime routine is important. Avoid screen time at least an hour before bed to minimise brain stimulation. Address any areas of stress in your child's life, such as new living situations, daycare changes, or the loss of a pet. Ensure your child gets enough sleep by implementing a regular bedtime and nap schedule.
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Consult a doctor if sweating persists
Night sweats are common in children of all ages, especially in babies and toddlers. This is because babies and toddlers spend more time in REM sleep, a deep sleep stage, than adults and older children. During this stage, their heart rate increases, making them more prone to heavy sweating at night. Babies and toddlers also cannot regulate their body temperature as well as adults.
If your baby or toddler is sweating at night, you should first check their sleeping environment. Their sleep environment should stay between 65 and 72°F (20 to 22°C). You can use a portable thermometer or a baby monitor to keep track of the temperature. Dress your baby in lightweight, breathable clothes, and remove layers as needed. For safety, keep any blankets, quilts, pillows, stuffed animals, and comforters out of their crib if they are under the age of 1.
If you have tried these steps and your baby or toddler is still sweating, they could have a fever. Seek medical attention if your baby is younger than 3 months old and has a fever with a rectal temperature of 100.4°F (38°C) or over 3 months old with a fever of 102°F (38.9°C) or higher.
Consult a doctor if your child's night sweats persist and are accompanied by other symptoms such as inexplicable weight loss, frequent infections, fatigue, disrupted sleep patterns, or a fever lasting longer than 2 days. Night sweats could be a symptom of various conditions, including asthma, allergies, infections, sleep apnea, or certain medications. Medical professionals can thoroughly examine your child to rule out significant underlying conditions and provide appropriate treatment.
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Frequently asked questions
There are many reasons why your 1-year-old may be sweating in their sleep. Firstly, babies and toddlers spend more time in REM sleep than adults and older children. During this deep sleep stage, their heart rate increases, making them more prone to sweating. Additionally, their nervous systems are still developing, so they may not be able to regulate their body temperature as effectively as adults. Keeping the room cool, dressing your baby in lightweight, breathable clothes, and avoiding heavy blankets can help prevent night sweats.
Common causes of night sweats in toddlers include sleep apnea, respiratory infections, and hormonal imbalances. Night terrors, similar to nightmares but more dramatic, can also cause toddlers to wake up sweaty and inconsolable. Additionally, over-bundling or overdressing your child can contribute to night sweats.
While night sweats in toddlers are usually not a cause for concern, persistent night sweats may indicate underlying health issues. If your toddler is sweating excessively, consult a pediatrician to rule out conditions such as hyperhidrosis (excessive sweating), hormone disorders, or other medical conditions. Look out for additional symptoms accompanying the night sweats and consider taking your toddler's temperature to check for a fever.











































