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 DisorderTime FactorsNocturnal Myoclonus SyndromeContinuous Positive Airway PressureElectromyographyQuestionnairesFatigueMelatoninHypnotics and SedativesHabitsSeverity of Illness IndexAnalysis of VarianceCataplexyRestless Legs SyndromeRespirationSleep Phase ChronotherapyHomeostasisCross-Sectional StudiesBrainMolecular Sequence DataModels, MolecularBody TemperatureRisk FactorsMandibular AdvancementSomnambulismAdenoidectomyPharynxBrain WavesTonsillectomyPonsActivity CyclesUvulaPalate, SoftComorbidityPrevalenceAzabicyclo CompoundsChronobiology DisordersAge FactorsModels, BiologicalPositive-Pressure RespirationBody Mass IndexProspective StudiesPsychomotor PerformanceSignal Processing, Computer-AssistedAmino Acid SequenceCross-Over StudiesCrystallography, X-RayMonitoring, AmbulatoryRespiratory MechanicsDepressionMemoryOxygenQuality of LifePharyngeal MusclesCase-Control Studies