sleepwalking

noun

1. (countable, uncountable)The act of walking while not conscious or aware of it, during one's sleep.

   “The play presents a whole gamut of such causes, from irrational passions, omens, prophecies, haunted sleepwalkings, nightmares, prodigies of nature, and conjurings, to Laius's ghost in four incarnations […]”

verb

1. (form-of, gerund, participle, present)present participle and gerund of sleepwalk