Evaluation of thermal environment considering the effects of body movement during sleep

Yuichi Akiyama; Risa Inoue; Yuka Takeuchi; Masayuki Ogata; Kazuyo Tsuzuki; Shin Ichi Tanabe

doi:10.3130/aije.83.831

Evaluation of thermal environment considering the effects of body movement during sleep

Yuichi Akiyama, Risa Inoue, Yuka Takeuchi, Masayuki Ogata, Kazuyo Tsuzuki, Shin Ichi Tanabe

School of Creative Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

To accurately evaluate the thermal environment during sleep, it is necessary to consider the influence of body movements. In this study an experiment in a climate chamber and a field survey in actual bedrooms was conducted. In the experiment, the thermal insulation with various combinations of sleeping postures and bedclothes, and the heat flux on the back were measured. By considering the thermal insulation and the heat conduction during sleeping, the accuracy of the thermal environment evaluation improved. As a result, it was found that there was a significant increase in wake after sleep onset away from thermal neutral.

Original language	English
Pages (from-to)	831-838
Number of pages	8
Journal	Journal of Environmental Engineering (Japan)
Volume	83
Issue number	752
DOIs	https://doi.org/10.3130/aije.83.831
Publication status	Published - 2018 Oct

Keywords

Sleep
Thermal conductance
Thermal environment evaluation
Total thermal insulation
Wake after sleep-onset

ASJC Scopus subject areas

Environmental Engineering

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abstract = "To accurately evaluate the thermal environment during sleep, it is necessary to consider the influence of body movements. In this study an experiment in a climate chamber and a field survey in actual bedrooms was conducted. In the experiment, the thermal insulation with various combinations of sleeping postures and bedclothes, and the heat flux on the back were measured. By considering the thermal insulation and the heat conduction during sleeping, the accuracy of the thermal environment evaluation improved. As a result, it was found that there was a significant increase in wake after sleep onset away from thermal neutral.",

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AU - Akiyama, Yuichi

AU - Inoue, Risa

AU - Takeuchi, Yuka

AU - Ogata, Masayuki

AU - Tsuzuki, Kazuyo

AU - Tanabe, Shin Ichi

PY - 2018/10

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N2 - To accurately evaluate the thermal environment during sleep, it is necessary to consider the influence of body movements. In this study an experiment in a climate chamber and a field survey in actual bedrooms was conducted. In the experiment, the thermal insulation with various combinations of sleeping postures and bedclothes, and the heat flux on the back were measured. By considering the thermal insulation and the heat conduction during sleeping, the accuracy of the thermal environment evaluation improved. As a result, it was found that there was a significant increase in wake after sleep onset away from thermal neutral.

AB - To accurately evaluate the thermal environment during sleep, it is necessary to consider the influence of body movements. In this study an experiment in a climate chamber and a field survey in actual bedrooms was conducted. In the experiment, the thermal insulation with various combinations of sleeping postures and bedclothes, and the heat flux on the back were measured. By considering the thermal insulation and the heat conduction during sleeping, the accuracy of the thermal environment evaluation improved. As a result, it was found that there was a significant increase in wake after sleep onset away from thermal neutral.

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KW - Thermal conductance

KW - Thermal environment evaluation

KW - Total thermal insulation

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