Effectiveness of a Cool Bed Linen for Thermal Comfort and Sleep Quality in Air-Conditioned Bedroom under Hot-Humid Climate

Sheikh Ahmad Zaki, Mohamad Faizal Rosli, Hom Bahadur Rijal, Farah Nurhanis Hassan Sadzli, Aya Hagishima and Fitri Yakub
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Sheikh Ahmad Zaki: Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia Kuala Lumpur, Kuala Lumpur 54100, Malaysia
Mohamad Faizal Rosli: Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia Kuala Lumpur, Kuala Lumpur 54100, Malaysia
Hom Bahadur Rijal: Faculty of Environmental Studies, Tokyo City University, Yokohama 224-8551, Japan
Farah Nurhanis Hassan Sadzli: Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia Kuala Lumpur, Kuala Lumpur 54100, Malaysia
Aya Hagishima: Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan
Fitri Yakub: Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia Kuala Lumpur, Kuala Lumpur 54100, Malaysia

Sustainability, 2021, vol. 13, issue 16, 1-27

Abstract: Comfort temperature and sleep quality involving 20 participants were determined in two cases: Case A (arbitrary, controlled air-conditioner setting) and Case B (adjustment of 3 °C higher than the setting of Case A with cool bed linen). Data of indoor thermal comfort and electricity consumption were collected every night throughout the measurement period. Questionnaires on thermal comfort and sleep quality were distributed twice a night for a duration of three nights for each case; the first night was for respondents’ adaptation and the following two nights were for measurement. The sleep quality of the respondents was objectively measured using a commercially available activity tracker. Results found that most respondents were thermally comfortable in both cases, with 39% lower energy consumption reported for Case B compared to Case A. The thermal conditions of Case B were found to be more tolerable than those of Case A. Most respondents reported to have a calm and satisfied sleep for both cases. Comfort temperature and Sleep Efficiency Index ( SEI ) were found to be maintained in both cases.

Keywords: cool bed linen; thermal comfort; air conditioning; bedroom; sleep quality (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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