The pooled outcomes of number of awakenings, sleep onset latency and adverse effects also revealed a better therapeutic effect of auricular acupuncture, statistically. A. Forest plot of number of awakenings; Mean number of mid-sleep awakenings, the more frequently awakenings occurred, the poorer the sleep. B. Forest plot of sleep onset latency; Time in bed until falling asleep, less than 30 minutes is normal. C. Forest plot of adverse effects.