title: Duration of EEG sleep stages in different types of disturbed night sleep.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D002110:Caffeine / Q000494:pharmacology; D004569:Electroencephalography; D005260:Female; D006801:Humans; D006993:Hypnotics and Sedatives / Q000494:pharmacology; D008297:Male; D008875:Middle Aged; D012890:Sleep / Q000187:drug effects; D012894:Sleep Stages / Q000187:drug effects
chemical_list: D006993:Hypnotics and Sedatives; D002110:Caffeine