Sleep Comfort Evaluation in Bedding that Utilized Phase Change Materials (PCM)

The purpose of this study is to reveal the bedding influence degree to quality of sleep. This bedding utilized Phase Change Materials (PCM). We carried out two experiments. Firstly, we experimentally confirmed thermal properties of the PCM. Secondly, we carried out overnight sleep experiment in hot...

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Published inNihon Kansei Kougakkai rombunshi Vol. 14; no. 3; pp. 381 - 389
Main Authors HASHIMOTO, Kazuma, AOI, Masataka, YOSHIDA, Hiroaki, KAMIJO, Masayoshi
Format Journal Article
LanguageEnglish
Published Japan Society of Kansei Engineering 2015
Subjects
Comfort
PCM
Sleep
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Summary:The purpose of this study is to reveal the bedding influence degree to quality of sleep. This bedding utilized Phase Change Materials (PCM). We carried out two experiments. Firstly, we experimentally confirmed thermal properties of the PCM. Secondly, we carried out overnight sleep experiment in hot and cold environment. We prepared the PCM bedding and normal bedding that is commercially-supplied. Consequently, the PCM had been the property of cold tactile sensation rather than the normal bedding. From overnight sleep experiment, we found that subjects fell asleep earlier by using the PCM bedding. In cold environment, subjects' skin humidity was low and felt bad after sleep in the PCM bedding sleep. We concluded the PCM has a special endothermic property to deprive the temperature of skin surface.
ISSN:1884-0833
1884-5258
DOI:10.5057/jjske.TJSKE-D-14-00085