WakefulnessSleepSleep, REMSleep StagesSleep DeprivationElectroencephalographyArousalPolysomnographyNarcolepsyCircadian RhythmNeuropeptidesPonsOrexin ReceptorsElectromyographyReticular FormationReceptors, NeuropeptidePharyngeal MusclesBenzhydryl CompoundsElectrooculographyDisorders of Excessive SomnolencePulmonary VentilationRespiratory MechanicsRespirationSleep Apnea SyndromesCataplexyTegmentum MesencephaliSleep Disorders, IntrinsicVentilators, Negative-PressureBenzoxazolesMicrodialysisIntracellular Signaling Peptides and ProteinsDelta Sleep-Inducing PeptideSleep Apnea, ObstructiveBody TemperatureHypercapniaPersistent Vegetative StateAir PressureSleep Disorders, Circadian RhythmDelta RhythmSomnambulismCatsProsencephalonHypothalamic Area, LateralCentral Nervous System StimulantsUnconsciousnessNeuronsHypothalamusSleep DisordersSleep Initiation and Maintenance DisordersChemoreceptor CellsBrainTheta RhythmCerebral CortexMicroinjectionsCarbon DioxideDreamsThalamusSpinocerebellar TractsRespiratory Physiological PhenomenaSleep Apnea, CentralLocus CoeruleusSerotonergic NeuronsHomeostasisPharynxBrain WavesTemazepamTime FactorsConsciousnessConsciousness DisordersTidal VolumeRats, Sprague-DawleyBehavior, AnimalHypothalamic HormonesActigraphyActivity CyclesParasomniasElectrodes, ImplantedChloral HydrateHypnotics and SedativesAutomobile Driver ExaminationPedunculopontine Tegmental NucleusSubstantia InnominataReaction TimeDiaphragmRespiratory MusclesGABA-A Receptor AgonistsAlpha RhythmMedulla OblongataAdrenergic NeuronsAnalysis of VarianceMotor ActivityRaphe NucleiPreoptic AreaMelatoninAirway ResistancePsychomotor PerformanceReceptors, G-Protein-CoupledContinuous Positive Airway PressureSignal Processing, Computer-AssistedHypoglossal Nerve