Sleep isn't real.
I don’t know if I ever posted this before, but if I did bear with me.
Daring Do is Daring’s real name, but the reason so many ponies remember her by a differret name was because she was often referred to with her nickname, Yearling. Ever since foalhood, the nickname had become so common upon her peers and teachers that many assumed that Yearling was her real name. She would correct them, but regardless they still referred to her as Yearling because it was easier to remember. When she grew up to become an archaeologist and write about her adventures, she made her alias based off her parents’ initials and her foalhood nickname.