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1995 Fiscal Year Final Research Report Summary

Study on the effects of bed mattresses upon body movements and thermal response during sleeping at thermal environmental conditions in bedroom.

Research Project

Project/Area Number 06454622
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 家政学
Research InstitutionNARA Women s University

Principal Investigator

YANASE Takuko  NARA Women s University, Human Life and Environment, Professor, 生活環境学部, 教授 (60031663)

Co-Investigator(Kenkyū-buntansha) KUBO Hiroko  NARA Women s University, Human Life and Environment, Assistant, 生活環境学部, 助手 (90186437)
Project Period (FY) 1994 – 1995
KeywordsThermal environment and sleep / Sleep and body movement / Bed mattres and sleep / Bed mattres and body pressure / 皮膚温 / 体動
Research Abstract

The purpose of this study was to investigate the influences of the kinds of bed mattresses at the thermal environmental conditions of bedroom
The experiments were carried out in a climatic chamber changed at three thermal conditions (temperatures and humidities ; low (13゚C,50%), middle (20゚C,60%) and high (29゚C,70%)). Three kinds of bed mattres (sprinng, water and jel) were used for the test materials..
On the first step, the changes of relative humidities and temperatures in bed, the pressures upon the body and the physiological reactions were measured during the subjects lied on the back or side. The second step, were measured during all night sleepinng. The results were as follows ;
1.The pressure values around of the shoulder back and buttocs keeps large but subjective senses are strong at the waist..
2.Many body movements during all night sleeping are observed on the spring mattres but a few on the water and jel mattres. There are find the correlation between the elasticities of mattres and the body movements during all night sleeping.
3.Temperatures in the bed don't differ with mattreses, while high humidities in the bed are observed with water and jel mattreses at each ambient temperatures.

  • Research Products

    (2 results)

All Other

All Publications (2 results)

  • [Publications] 梁瀬度子: "高齢者居住施設の室内温熱環境について" 建築学会大会論文梗概集・D環境. 関東(予定). (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] YANASE,Takuko: "Thermal Environment and Confot Sleep" The 12th Sleep Environment Symposium Proceeding. 14-17 (1996)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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