SleepSleep, REMSleep DisordersSleep Apnea, ObstructiveSleep Apnea SyndromesSleep Initiation and Maintenance DisordersBrain ChemistryPolysomnographyBrain InjuriesWakefulnessBrain NeoplasmsBrain MappingElectroencephalographyBrainArousalBrain StemActigraphyBrain EdemaCircadian RhythmSleep Apnea, CentralBrain IschemiaDisorders of Excessive SomnolenceMagnetic Resonance ImagingSleep BruxismSleep Disorders, IntrinsicTime FactorsElectrooculographyBrain AbscessCerebral CortexNeuronsSleep Medicine SpecialtySleep Arousal DisordersSnoringNarcolepsyDelta RhythmDreamsSleep ParalysisHypoxia, BrainREM Sleep Behavior DisorderRats, Sprague-DawleyBrain WavesBlood-Brain BarrierAnalysis of VarianceNocturnal Myoclonus SyndromeContinuous Positive Airway PressureElectromyographyBrain Damage, ChronicQuestionnairesHypnotics and SedativesMelatoninSeverity of Illness IndexBrain InfarctionFatigueHippocampusBehavior, AnimalHabitsDeep Brain StimulationBody TemperatureImage Processing, Computer-AssistedNerve Tissue ProteinsDisease Models, AnimalCognitionMemoryAgingPsychomotor PerformanceNeuropsychological TestsMice, Inbred C57BLCataplexyCerebrovascular CirculationRats, WistarPonsOxygenNeural PathwaysTissue DistributionAlzheimer DiseaseReaction TimeRestless Legs SyndromeNerve NetAge FactorsRespirationThalamusHomeostasisAnimals, NewbornCognition DisordersNeuropeptidesSleep Phase ChronotherapyRisk FactorsCerebellumAstrocytesReference ValuesCross-Sectional StudiesImmunohistochemistrySignal Processing, Computer-AssistedFrontal LobeCase-Control StudiesRNA, MessengerHypothalamusReproducibility of ResultsProspective StudiesProsencephalon