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How to Maintain Sleep Quality in Babies in Hot Weather?

Why Is Baby Sleep Affected in Hot Weather?

  • Babies are more sensitive than adults in terms of body temperature regulation.
  • Their bodies heat up more quickly and they lose fluids through sweating.
  • A hot or stuffy room delays sleep onset and causes frequent nighttime awakenings.
  • Rising temperatures shorten the REM sleep phase, leading to restlessness.
  • Interrupted sleep directly affects a baby’s development and emotional well-being.

Ideal Sleep Environment Temperature and Humidity

Parameter

Ideal Value

Room temperature

20–22°C (maximum 24°C)

Humidity

40–60%

Body temperature

36.5–37.2°C (forehead)

Using room temperature and humidity measuring devices can be beneficial for parents during this period.

Tips to Preserve Baby Sleep Quality in Hot Weather

1. Keep the Room Cool During the Day

  • Cover sunlit windows with curtains; blackout curtains are ideal.
  • Ventilate the room in the evening; create cross-ventilation if possible.

2. Use Air Conditioners or Fans Properly

If using air conditioning:

  • Set the room temperature to a stable 23–24°C.
  • Avoid direct airflow on the baby; direct air toward the ceiling.

If using a fan:

  • Position it to circulate air around the sleeping area.
  • Avoid direct wind on the baby.
  • Ensure the air is cool but not overly dry or drafty.

3. Dress Lightly and Choose Breathable Fabrics

  • Opt for cotton, light-colored onesies or bodysuits.
  • Avoid overdressing—diaper + light tank top is often enough.
  • Use a light sleeping bag or just a sheet instead of a blanket.

4. Monitor for Sweating

  • Check the neck, back, and chest regularly.
  • If the baby is sweating excessively, undress and gently wipe them with lukewarm water.
  • Avoid using hats, pillows, or thick bedding that can cause overheating.

5. Lukewarm Bath or Wipe Down Before Bed

  • A lukewarm (not cold!) bath or sponge wipe can help regulate body temperature.
  • Focus on areas prone to sweating: underarms, neck, inner thighs, etc.

Additional Tips for Easier Summer Sleep

  • Adjust bedtime to cooler parts of the day.
  • Feeding or putting the baby to sleep might take longer—they may tire more easily in the heat.
  • Babies lose fluids faster when sweating → offer breast milk more frequently.
  • White noise machines can help block out external summer noises and aid sleep.

Caution! These May Disrupt Sleep Quality

Factor

Why It Matters

Overdressing

Raises body temperature, causes sweating during sleep

Dark-colored/synthetic fabrics

Trap heat, restrict air circulation

High humidity

Sweat cannot evaporate, baby becomes uncomfortable

Constant AC/fan exposure

Can cause nasal congestion or cold symptoms