A person who is subject to somnambulism; one who walks in his sleep; a sleepwalker; a noctambulist.

someone who walks about in their sleep

a sleepwalker; noctambulist. Man

"Somnambulist (Simply Being Loved)" is a song by Brian Transeau, better known as BT, that was released as a single on March 20, 2003. The track quickly became the most successful track from the album Emotional Technology, and one of Transeau's biggest commercial hits.

an individual who has the ability to go very deeply into hypnosis