Sleep-Wake Transition DisordersSleepWakefulnessSleep, REMSleep DisordersSleep DeprivationCircadian RhythmChronobiology DisordersSleep Disorders, Circadian RhythmPolysomnographyActigraphyArousalElectroencephalographySleep StagesSleep Initiation and Maintenance DisordersOrexin ReceptorsNarcolepsySleep Apnea, ObstructiveSleep Apnea SyndromesReceptors, NeuropeptideCataplexyJet Lag SyndromeSensory DeprivationElectromyographyNeuropeptidesBipolar DisorderTime FactorsMelatoninBody TemperatureWater DeprivationFood DeprivationMonitoring, AmbulatoryPsychosocial DeprivationMental DisordersFatigue