What is the source for reciting Shema before going to sleep? Learn the Halacha and uncover the story of Rabbi Abba and the anonymous man in the Zohar, as well as the history of two people who seem to have written the same book.

Sources: Talmud (Berachos & Megillah), Rashi in parshas Balak; Zohar, Menoras HaMaor (may not be what you think!), Siddur HaShelah, Hemshech Ayin-Beis, Simchas Torah Farbrengen with the Rebbe, and Hayom Yom.