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English definition of “delayed sleep phase pattern”

delayed sleep phase pattern

noun [S] uk   /dɪˌleɪd ˈsliːp feɪz ˌpæt.ən/ us    /dɪˈleɪd ˈsliːp ˌfeɪz ˌpæt̬.ərn/ specialized
a situation in which someone falls asleep and wakes later than most people: Delayed sleep phase pattern can cause problems with schooling and work.
(Definition of delayed sleep phase pattern from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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