In the Afternoon of Rosh Hashanah

It is proper not to nap during the day of Rosh Hashanah because the Jerusalem Talmud says that one who sleeps on Rosh Hashanah will have a sleepy mazal that year. One should rather occupy oneself with reciting Tehillim and studying Torah.

• Some say that one may nap after midday. It is certainly better to nap than to waste time.
• The main interpretation of the teaching that “one who sleeps on Rosh Hashanah will have a sleepy mazal that year” is that one who is sleepy and does not pray with strength, his mazal, i.e., his defending angel, will not have the strength to speak in his merit.