ArousalWakefulnessSleep Disorders, Circadian RhythmSleep DeprivationWork Schedule ToleranceSleepDisorders of Excessive SomnolenceCircadian RhythmAttentionNeuroanatomySleep StagesElectrooculographyPsychomotor PerformanceElectroencephalographyPolysomnographyMelatoninAffectFatigueAviationHypnotics and SedativesAromatherapyConscious SedationAlpha RhythmReaction TimeCentral Nervous System StimulantsPropofolReflex, PupillaryAsthenopiaAutomobile DrivingCognitionConsciousness MonitorsDeep SedationNeuropsychological TestsCaffeineBody TemperatureLightingAnesthesia Recovery PeriodPersonnel Staffing and SchedulingTask Performance and AnalysisBenzhydryl CompoundsAnalysis of VarianceSleep DisordersConsciousnessDouble-Blind MethodFlicker FusionCross-Over StudiesLightPhototherapyAnesthetics, IntravenousTime FactorsOccupational HealthDextroamphetamineMidazolamEducation of Intellectually DisabledSleep Initiation and Maintenance DisordersFentanylMonitoring, IntraoperativeBrainSignal Processing, Computer-AssistedMemory, Short-TermCognition DisordersLevodopaDopamine AgonistsSleep Apnea, ObstructiveQuestionnairesAnxietyDose-Response Relationship, DrugPhotic StimulationMagnetic Resonance ImagingPiperidinesHydrocortisoneMemoryHeart RateMotor ActivityElectromyographyAdaptation, PhysiologicalElectrocardiographyTreatment OutcomePregnancyProspective Studies