Sleep DisordersSleepSleep Disorders, Circadian RhythmSleep, REMParasomniasNarcolepsySleep Initiation and Maintenance DisordersSleep Disorders, IntrinsicPolysomnographySleep Apnea, ObstructiveSeverity of Illness IndexSleep Apnea SyndromesNocturnal Myoclonus SyndromeDisorders of Excessive SomnolenceRestless Legs SyndromeWakefulnessSomnambulismChronobiology DisordersJet Lag SyndromeSleep StagesMelatoninCircadian RhythmCataplexyREM Sleep Behavior DisorderSleep Medicine SpecialtySleep BruxismDyssomniasMental DisordersBipolar DisorderArousalQuestionnairesSnoringElectroencephalographyActigraphyPhototherapyBender-Gestalt TestHypersomnolence, IdiopathicSleep Arousal DisordersAnxiety DisordersNight TerrorsComorbidityMood DisordersHypnotics and SedativesPrevalenceNocturiaFatigueSleep DeprivationElectrooculographyDepressive DisorderDreamsDiagnostic and Statistical Manual of Mental DisordersRisk FactorsSleep ParalysisKleine-Levin SyndromeCross-Sectional StudiesBruxismHyperacusisTime FactorsContinuous Positive Airway PressureHabitsOrexin ReceptorsDepressionDepressive Disorder, MajorQuality of LifeCase-Control StudiesPsychiatric Status Rating ScalesSecobarbitalProspective StudiesAttention Deficit Disorder with HyperactivityAnalysis of VarianceNeuropeptidesAge FactorsTreatment OutcomeMandibular AdvancementRhinomanometryCognition DisordersSleep Apnea, CentralHemodialysis Units, HospitalTrazodoneElectromyographyReceptors, NeuropeptideStress Disorders, Post-TraumaticHydroxyzinePsychology, ClinicalParkinson DiseaseObsessive-Compulsive DisorderTonsillectomyBrainAutistic DisorderCentral Nervous System StimulantsEnuresisCohort StudiesAzabicyclo CompoundsSex FactorsSubstance-Related DisordersPsychotic DisordersChild Development Disorders, PervasiveRetrospective StudiesPhobic DisordersBody Mass Index