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　　白??(bai)天??(tian)的??(de)睡??(shui)眠??(mian)時(shí)??(shi)間??(jian)不??(bu)要??(yao)超??(chao)過(guò)??(guo)45分??(fen)鐘??(zhong)??。??　　調(diào)??(tiao)查??(zha)數(shù)??(shu)據(jù)??(ju)顯??(xian)示??(shi)??，有??(you)1/4的??(de)人??(ren)睡??(shui)眠??(mian)不??(bu)足?(zu)6小??(xiao)時(shí)??(shi)??，零??(ling)點(diǎn)??(dian)后??(hou)入??(ru)睡??(shui)的?(de)人??(ren)群??(qun)已??(yi)超??(chao)半??(ban)數(shù)??(shu)??，近??(jin)四??(si)成??(cheng)人??(ren)群??(qun)存??(cun)在??(zai)夜?(ye)間??(jian)易??(yi)醒??(xing)問(wèn)??(wen)題??(ti)??，有??(you)65%的??(de)人??(ren)每??(mei)周??(zhou)出??(chu)現(xiàn)??(xian)1—2次??(ci)睡??(shui)眠?(mian)困??(kun)擾??(rao)??。??調(diào)?(tiao)查??(zha)顯?(xian)示??(shi)??，“00后?(hou)”的??(de)大??(da)學(xué)??(xue)生??(sheng)群??(qun)體??(ti)晚?(wan)睡??(shui)晚??(wan)起??(qi)成??(cheng)常?(chang)態(tài)??(tai)??，僅??(jin)有??(you)2成??(cheng)左??(zuo)右??(you)的??(de)大??(da)學(xué)?(xue)生??(sheng)零??(ling)點(diǎn)??(dian)前??(qian)入??(ru)睡??(shui)??，1/4的??(de)大??(da)學(xué)??(xue)生??(sheng)凌??(ling)晨?(chen)2點(diǎn)??(dian)后??(hou)才??(cai)入??(ru)睡?(shui)??。。