sleepwakerEtymologyFrom sleep + waker.nounOne in a state of magnetic or mesmeric sleep; someone in a hypnotic trance.“I once asked a sleepwaker whether she could perceive any analogy between animal and mineral magnetism, when she replied, ' There is an analogy — but the latter is of a coarser nature.'”A sleepwalker; one who walks in their sleep.“As I have before said, he had been, in shildhood, a natural sleepwaker; and I now add , on the testimony of his father, that he would sometimes rise in the night, take out his flute, ( an instru- ment which he was studying professionally,) place music before him, and play from notes, continuing to turn over the leaves of the music-book correctly, although his eyes were closely shut.”