WakefulnessArousalSleepSleep StagesSleep, REMSleep DeprivationElectroencephalographyPolysomnographyNeuropeptidesCircadian RhythmNarcolepsyOrexin ReceptorsPonsElectromyographyBrain ChemistryReceptors, NeuropeptideReticular FormationSleep Arousal DisordersBrainElectrooculographyPharyngeal MusclesPulmonary VentilationBrain MappingSleep Apnea SyndromesBrain InjuriesBenzhydryl CompoundsRespirationDisorders of Excessive SomnolenceRespiratory MechanicsBrain NeoplasmsCerebral CortexSleep Apnea, ObstructiveTegmentum MesencephaliMicrodialysisSomnambulismBody TemperatureNeuronsBrain StemIntracellular Signaling Peptides and ProteinsCataplexyHypothalamic Area, LateralHypercapniaBenzoxazolesSleep Disorders, IntrinsicHypothalamusProsencephalonVentilators, Negative-PressureRats, Sprague-DawleyPersistent Vegetative StateTime FactorsCentral Nervous System StimulantsDelta Sleep-Inducing PeptideEroticaThalamusCatsBehavior, AnimalLocus CoeruleusSleep Initiation and Maintenance DisordersSleep DisordersBrain WavesUnconsciousnessRespiratory Physiological PhenomenaAir PressureCarbon DioxideParasomniasAnalysis of VarianceSleep Disorders, Circadian RhythmDelta RhythmMagnetic Resonance ImagingTheta RhythmChemoreceptor CellsMicroinjectionsDreamsSleep Apnea, CentralReaction TimeHypothalamic HormonesConsciousnessConsciousness DisordersHibernationHomeostasisLibidoNeural PathwaysHeart RateTidal VolumeHypnotics and SedativesSpinocerebellar TractsElectrodes, ImplantedPharynxBrain EdemaPedunculopontine Tegmental NucleusPsychomotor PerformanceSerotonergic NeuronsActivity CyclesAlpha RhythmSubstantia InnominataMedulla OblongataTemazepamMice, Inbred C57BLActigraphyMotor Activity