Night sweats in children

Overview

Night sweats are episodes of heavy sweating during sleep that are not caused by the room being too warm or by using too many blankets. In children, they can happen for many reasons, from harmless causes like a cold to more serious medical conditions.

Night sweats are fairly common in children. Many children experience them at some point, especially during a mild illness like a cold or flu.

Night sweats can affect children of any age, from babies to teenagers.

Symptoms

Common symptoms

• Sweating during sleep that is heavy enough to soak pajamas or bedding
• Waking up feeling hot and clammy
• Needing to change clothes or sheets in the middle of the night

Symptoms in children

• May also have a fever, especially with infections
• Cough or runny nose with a cold
• Unexplained weight loss
• Feeling very tired or weak
• Lack of appetite

Causes

Main causes

• Infections such as the common cold, flu, or other viral illnesses
• Bacterial infections like pneumonia or tuberculosis (rare but serious)
• Sleep environment that is too warm (hot room, heavy blankets, thick pajamas)
• Anxiety or stress (can cause sweating at night)
• Hormonal changes (e.g., in puberty or with thyroid problems)
• Certain medications (e.g., some antidepressants or fever reducers)
• Rarely, conditions like autoimmune disorders or cancer (e.g., lymphoma)

Risk factors

• Recent illness (especially with fever)
• Living in or traveling to areas where certain infections are common
• Having a weakened immune system
• Family history of certain conditions like autoimmune diseases

When to see a doctor

See a doctor urgently if:

• Night sweats with high fever, stiff neck, or trouble breathing
• Child seems very sick or is hard to wake
• Night sweats with weight loss or poor growth

Book a routine appointment if:

• Night sweats that happen several times a week without other symptoms
• If you are worried or the sweating is disturbing your child’s sleep

Diagnosis

Your doctor will ask about your child’s symptoms, sleep habits, and general health. They will also do a physical exam.

Tests that may be done

• Blood tests to check for infection, anemia, or thyroid problems
• Chest X-ray to look for lung infections (if tuberculosis is a concern)
• Culture or swab for specific germs if infection is suspected
• In some cases, tests for autoimmune disorders or imaging scans

What to expect at your appointment

The doctor will aim to find the cause of the night sweats. This may take a few visits. They might refer your child to a paediatric specialist if needed.

Treatment

Treatment depends on the cause. Most children with night sweats due to a mild illness get better on their own. If there is an underlying condition, the doctor will treat that.

Self-care at home

• Keep the bedroom cool and well-ventilated
• Use lighter pajamas and fewer blankets
• Give your child a cool bath before bedtime
• Encourage good sleep hygiene: regular bedtime, no screen time right before sleep
• Make sure your child drinks enough water during the day

Medical treatments

If an infection is found, the doctor may prescribe antibiotics or other medications. For thyroid problems, medications can help balance hormones. Other causes, like anxiety, may be treated with talking therapies. The doctor will choose the safest option for your child.

Living with this condition

For most children, night sweats do not cause long-term problems. You can help by creating a comfortable sleep environment and keeping an eye on other symptoms. If the sweating is from an illness, follow your doctor’s advice for managing the condition.

Lifestyle tips

• Maintain a consistent bedtime routine
• Dress your child in light, breathable cotton pajamas
• Use a fan or open a window (if safe) to keep the room cool
• Change sheets and pajamas if they get wet to prevent skin irritation

Diet and exercise

A healthy diet and regular physical activity help support the immune system. Avoid giving your child heavy meals or sugary drinks right before bed.

Mental health and emotional wellbeing

Night sweats can sometimes make children feel anxious about sleeping or dry bedding. Reassure your child that it is usually not serious. If your child seems stressed, talk to their doctor or a child psychologist.

Prevention

Night sweats cannot always be prevented, especially when they are caused by an infection. However, keeping your child’s bedroom cool, not overdressing them at night, and treating illnesses early may help reduce the chance.

Vaccines

Keeping your child up to date with routine vaccinations (like flu, pneumonia, and TB where recommended) can prevent some infections that cause night sweats.

Screening programmes

Routine screening is not needed for night sweats alone. Your doctor may recommend tests if symptoms suggest a specific cause.

Complications

If left untreated

• If night sweats are caused by an untreated infection, it can worsen (e.g., pneumonia or tuberculosis)
• Weight loss and poor growth if a serious illness is missed
• Fatigue and trouble concentrating due to poor sleep

Long-term outlook

The outlook is usually good. Most causes of night sweats in children are treatable, and many go away on their own. With proper medical care, most children recover fully and sleep well again.

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