title: Sleep and insomnia.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D002385:Cataplexy; D004569:Electroencephalography; D006801:Humans; D007231:Infant, Newborn; D009290:Narcolepsy; D012890:Sleep; D007319:Sleep Initiation and Maintenance Disorders / Q000145:classification; D012894:Sleep Stages; D012895:Sleep, REM; D013009:Somnambulism; D014851:Wakefulness