Figure 1

Score of sleep feeling with OSA subjective sleep rating scale. (A) Score of sleep feeling (Sleep maintenance). *Significant difference compared to Placebo by Wilcoxon's signed rank test; p < 0.02 (n = 45). (B) Score of sleep feeling (Sleep initiation). **Significant difference compared to Placebo by Wilcoxon's signed rank test; p < 0.008 (n = 45).