How staying in a gymnasium affects sleep and bed climate in children

Kazue Okamoto-Mizuno1, Koh Mizuno2

  • 1Faculty of Human Ecology, Wayo Women's University, 2-3-1 Konodai, Ichikawa, Chiba, 272-8533, Japan. k-mizuno@wayo.ac.jp.

Insights

Children’s sleep quality in a simulated shelter was poor due to higher ambient humidity and a delayed chest-area bed climate temperature increase. This led to heat disturbance and reduced sleep efficiency and duration.

Area of Science:

  • Environmental Science
  • Sleep Science
  • Pediatric Health

Background:

  • Investigated the impact of ambient and bed climate on sleep in school-aged children.
  • Utilized a simulated shelter environment for controlled observation.

Purpose of the Study:

  • To demonstrate the effects of ambient and bed climate on sleep patterns in children.
  • To identify factors contributing to disturbed sleep in a shelter setting.

Main Methods:

  • Monitored ambient temperature and humidity in a gymnasium and homes.
  • Measured bed climate (chest and foot areas) and evaluated sleep using actigraphy.
  • Collected subjective reports on sleep and thermal sensations.

Main Results:

  • Simulated shelter conditions (C) showed higher ambient humidity and a delayed increase in chest-area bed temperature.
  • Sleep efficiency and duration were significantly reduced in the shelter.
  • Children reported heat disturbance and exited sleeping bags due to discomfort.

Conclusions:

  • Disturbed sleep in simulated shelters is linked to delayed chest-area bed climate warming.
  • Children's behavior (avoiding sleeping bags) and delayed skin temperature increase contribute to sleep disruption.
Abstract

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