title: Seasonal change of total sleep time and open air temperature.
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Kawada
mesh_terms: D000064:Acclimatization / Q000502:physiology*; D000388:Air; D001833:Body Temperature Regulation / Q000502:physiology*; D006801:Humans; D008875:Middle Aged; D017286:Polysomnography / Q000379:methods; D012621:Seasons; D012890:Sleep / Q000502:physiology*; D013696:Temperature