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The effect of 2‐h sleep reduction by a delayed bedtime on daytime sleepiness in children
Author(s) -
Ishihara Kaneyoshi
Publication year - 1999
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1046/j.1440-1819.1999.00500.x
Subject(s) - bedtime , daytime , sleep (system call) , excessive daytime sleepiness , psychology , audiology , medicine , psychiatry , insomnia , sleep disorder , computer science , atmospheric sciences , geology , operating system
The purpose of the present study was to investigate the effect of acute 2 h sleep reduction by a delayed bedtime on daytime sleepiness. Three children were evaluated over three consecutive days: two control days and a 2 h sleep reduction day. A sleep latency test was conducted five times each day at 2 h intervals from 10.00 h. The results showed that the effects of sleep loss generally increased daytime sleepiness, in particular, at 10.00 h, and suggested that the intensity of morning sleepiness may become a useful measure which reflects sleep loss.