Effect of thermal environment on sleep quality in actual bedroom in summer by sleep stages analysis

Yuichi Akiyama, Emika Miyake, Riho Matsuzaki, Masayuki Ogata, Kazuyo Tsuzuki, Shin Ichi Tanabe

Research output: Contribution to journalArticlepeer-review

Abstract

This field survey was conducted during the summer in actual bedrooms, and used polysomnography to evaluate how the thermal environment affected sleep quality. Sleep quality was evaluated by analyzing electroencephalogram, electro-oculogram, and electromyogram signals, which were measured continuously during sleep. It was found that the effect of the thermal environment i.e., air temperature, velocity and turbulence, on sleep quality varied according to the sleep cycle and stages. In relation, the effect of air turbulence depends mainly on the air temperature. Air turbulence affected sleep when temperatures were low or neutral. Under warm temperatures, air turbulence had few effect on sleep.

Original languageEnglish
Pages (from-to)277-284
Number of pages8
JournalJournal of Environmental Engineering (Japan)
Volume83
Issue number745
DOIs
Publication statusPublished - 2018 Mar

Keywords

  • Electroencephalogram
  • Field survey
  • Sleep
  • Thermal environment wake after sleep-onset

ASJC Scopus subject areas

  • Environmental Engineering

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