SleepSleep, REMSleep DisordersSleep Apnea, ObstructiveSleep Apnea SyndromesSleep Initiation and Maintenance DisordersPolysomnographyWakefulnessElectroencephalographyActigraphyArousalSleep Apnea, CentralCircadian RhythmDisorders of Excessive SomnolenceSleep BruxismSleep Disorders, IntrinsicElectrooculographySleep Medicine SpecialtySleep Arousal DisordersSnoringNarcolepsyDelta RhythmSleep ParalysisDreamsREM Sleep Behavior DisorderNocturnal Myoclonus SyndromeContinuous Positive Airway PressureElectromyographyQuestionnairesTime FactorsFatigueHypnotics and SedativesHabitsMelatoninSeverity of Illness IndexCataplexyRestless Legs SyndromeAnalysis of VarianceSleep Phase ChronotherapyRespirationBody TemperatureCross-Sectional StudiesMandibular AdvancementSomnambulismAdenoidectomyTonsillectomyPharynxUvulaHomeostasisPonsPalate, SoftBrain WavesActivity CyclesAzabicyclo CompoundsRisk FactorsComorbidityChronobiology DisordersPositive-Pressure RespirationPrevalenceBody Mass IndexMonitoring, AmbulatoryCross-Over StudiesPharyngeal MusclesBrainRespiratory Mechanics