Sleep DisordersSleepSleep Disorders, Circadian RhythmSleep, REMParasomniasNarcolepsySleep Initiation and Maintenance DisordersSleep Disorders, IntrinsicPolysomnographySick LeaveSleep Apnea, ObstructiveSleep Apnea SyndromesNocturnal Myoclonus SyndromeParental LeaveDisorders of Excessive SomnolenceRestless Legs SyndromeWakefulnessSomnambulismChronobiology DisordersJet Lag SyndromeFamily LeaveSleep StagesMelatoninCircadian RhythmCataplexyREM Sleep Behavior DisorderSleep Medicine SpecialtyMental DisordersSleep BruxismDyssomniasQuestionnairesArousalBipolar DisorderSnoringElectroencephalographyBender-Gestalt TestActigraphyPhototherapyHypersomnolence, IdiopathicSleep Arousal DisordersNight TerrorsSeverity of Illness IndexAnxiety DisordersMood DisordersHypnotics and SedativesComorbidityNocturiaSleep DeprivationFatigueElectrooculographyPrevalenceDreamsSleep ParalysisKleine-Levin SyndromeDepressive DisorderBruxismDiagnostic and Statistical Manual of Mental DisordersHyperacusisContinuous Positive Airway PressureTime FactorsHabitsOrexin ReceptorsCross-Sectional StudiesRisk FactorsDepressionDepressive Disorder, MajorSecobarbitalNeuropeptidesAttention Deficit Disorder with HyperactivityRhinomanometryHemodialysis Units, HospitalQuality of LifeMandibular AdvancementTrazodoneReceptors, NeuropeptideHydroxyzinePsychology, ClinicalSleep Apnea, CentralElectromyographyCase-Control StudiesAnalysis of VariancePsychiatric Status Rating ScalesCognition DisordersAge FactorsTonsillectomyStress Disorders, Post-TraumaticCentral Nervous System StimulantsEnuresisWork Schedule ToleranceParkinson DiseaseAutistic DisorderProspective StudiesObsessive-Compulsive DisorderAzabicyclo CompoundsTreatment OutcomeBrainSubstance-Related DisordersChild Development Disorders, PervasiveSex FactorsPhobic Disorders