# 在一般的寢具和睡衣條件下,大約攝氏18.3度的臥室溫度,對多數人來說是理想的睡眠溫度。這會讓很多人驚訝,因為聽起來好像冷到不舒服的程度。當然,實際上最適合的溫度因人而異,生理狀況、性別、年齡都有關係。但就像食物的建議熱量一樣,這是平均狀況下合適的數字。——為什麼要睡覺?
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