What is the definition or description of: sleep walking?

Somnambulism: Sleep walking is the act of movement, typically walking, during unconscious state of sleep. Person has no conscious awareness of the act. Typically this occurs during nrem sleep because during rem there is mostly atonia found making it impossible. Falls into same category as sleep sex, sleep talking and even sleep terrors.

Slow wave sleep: Arising from your bed during slow wave sleep and in a state of low consciousness, performing activities that you normally perform consciously, like walking.