SleepSleep, REMSleep DisordersPolysomnographyActigraphySleep Initiation and Maintenance DisordersWakefulnessSleep StagesSleep Apnea, ObstructiveSleep Apnea SyndromesNocturnal Myoclonus SyndromeSleep Disorders, Circadian RhythmArousalCircadian RhythmDisorders of Excessive SomnolenceElectroencephalographySleep DeprivationAzabicyclo CompoundsHypnotics and SedativesMelatoninRestless Legs SyndromeREM Sleep Behavior DisorderTime FactorsFatigueQuestionnairesSeverity of Illness IndexSleep Apnea, CentralElectrooculographyDreamsCross-Over StudiesAnalysis of VarianceNarcolepsySleep Disorders, IntrinsicSleep BruxismDouble-Blind MethodCognitive TherapyElectromyographySleep ParalysisCross-Sectional StudiesSleep Medicine SpecialtyDelta RhythmSnoringSleep Arousal DisordersDepressionAffectAge FactorsProspective StudiesCase-Control StudiesReference ValuesPilot ProjectsPsychiatric Status Rating ScalesTreatment OutcomeContinuous Positive Airway PressurePonsCataplexyChronic DiseaseFollow-Up StudiesHabitsEfficiencyRespirationBody TemperatureREM Sleep ParasomniasActivity CyclesHomeostasisBrain WavesSleep Phase ChronotherapyEfficiency, OrganizationalBrainReticular Formation