PolysomnographySleep Apnea, ObstructiveSleep Apnea SyndromesSleep StagesSleepSnoringDisorders of Excessive SomnolenceSleep, REMSleep DisordersContinuous Positive Airway PressureRespirationWakefulnessSeverity of Illness IndexArousalBody Mass IndexOxygenProspective StudiesComorbiditySleep Initiation and Maintenance DisordersNocturnal Myoclonus SyndromeAdenoidectomySleep Apnea, CentralActigraphyTonsillectomyQuestionnairesParasomniasCohort StudiesOximetryRisk FactorsNarcolepsyCheyne-Stokes RespirationMonitoring, AmbulatoryPositive-Pressure RespirationSomnambulismHypoventilationMandibular AdvancementRhinomanometryUvulaRestless Legs SyndromeApneaSleep DeprivationAzabicyclo CompoundsCircadian RhythmMonitoring, PhysiologicElectroencephalographyRespiration DisordersSleep Disorders, Circadian RhythmPalate, SoftDelta RhythmPierre Robin SyndromeCataplexyDyssomniasDiagnosis, Computer-AssistedSensitivity and SpecificityKleine-Levin SyndromeSleep Arousal DisordersPharynxHypnotics and SedativesREM Sleep Behavior DisorderElectrooculographyNasal ObstructionAdenoidsReproducibility of ResultsFluid ShiftsAirway Obstruction