Somnambulistic /(?)/

Som·nam·bu·lis·tic

Somnambulistic

a.
  1. Of or pertaining to a somnambulist or somnambulism; affected by somnambulism; appropriate to the state of a somnambulist.
    Whether this was an intentional and waking departure, or a somnambulistic leave-taking and walking in her sleep, may remain a subject of contention.