Altered Sleep Stage Transitions of REM Sleep: A Novel and Stable Biomarker of Narcolepsy Altered Sleep Stage Transitions of REM Sleep: A Novel and Stable Biomarker of Narcolepsy Download Adverse Effects of Daylight Saving Time on Adolescents’ Sleep and Vigilance Among Metabolic Factors, Significance of Fasting and Postprandial Increases in Acyl and Desacyl Ghrelin and the Acyl/Desacyl Ratio in Obstructive Sleep Apnea before and after Treatment