Sleep Apnea, ObstructivePolysomnographySleepSleep Apnea SyndromesSeverity of Illness IndexSleep Apnea, CentralSleep StagesSleep, REMSleep DisordersContinuous Positive Airway PressureBody Mass IndexSnoringWakefulnessPalate, SoftSleep Initiation and Maintenance DisordersMandibular AdvancementUvulaDisorders of Excessive SomnolencePharynxPositive-Pressure RespirationAdenoidectomyTonsillectomyArousalRespirationTongueAnoxiaPharyngeal MusclesCheyne-Stokes RespirationAirway ObstructionOximetryElectroencephalographyOcclusal SplintsCircadian RhythmRespiratory MechanicsOrthodontic Appliances, RemovableAdenoidsOxygenPulmonary VentilationProspective StudiesRisk FactorsQuestionnairesActigraphySleep Disorders, IntrinsicOropharynxNocturnal Myoclonus SyndromeNasal ObstructionElectrooculographyObesityTime FactorsTreatment OutcomeAirway ResistancePrevalenceNarcolepsyHyoid BoneComorbidityCase-Control StudiesMonitoring, AmbulatoryCephalometrySleep Arousal DisordersSupine PositionElectromyographyHypercapniaPatient ComplianceFollow-Up StudiesFluid ShiftsNeckCross-Sectional StudiesNoseOtorhinolaryngologic Surgical ProceduresSleep Medicine SpecialtyRespiratory Physiological PhenomenaAnalysis of VarianceMonitoring, PhysiologicHypopharynxBlood PressureMouth BreathingFatigueStatistics, NonparametricCarbon DioxideRetrospective StudiesRespiratory System