Sleep StagesSleepSleep, REMSleep DisordersPolysomnographyWakefulnessSleep Apnea SyndromesSleep Apnea, ObstructiveElectroencephalographyArousalElectrooculographySleep Initiation and Maintenance DisordersNocturnal Myoclonus SyndromeSleep Apnea, CentralCircadian RhythmDelta RhythmSleep DeprivationSignal Processing, Computer-AssistedElectromyographySupine PositionTime FactorsActigraphyRespirationBody TemperatureDisorders of Excessive SomnolenceSleep BruxismAutonomic Nervous SystemSleep Disorders, IntrinsicHeart RateSeverity of Illness IndexPostureNonlinear DynamicsSleep Medicine SpecialtySleep Arousal DisordersSnoringNarcolepsyAnalysis of VarianceSleep ParalysisDreamsREM Sleep Behavior DisorderOxygenReference ValuesBrainContinuous Positive Airway PressureElectrocardiographyQuestionnairesBrain MappingFatigueHypnotics and SedativesHabitsMelatonin