Sleep walking is also known as noctambulism or somnambulism.    From Wordnik.com.  [ReadABlog.com New Blogs and RSS Feeds] Reference

Such is precisely what came to pass in your noctambulism.    From Wordnik.com.  [A Philosophical Dictionary] Reference

And John Culmer Bell looks at the nature of electromagnetic radiation as a shaper of 19th - and 20th - century urban form, provocatively questioning whether sacrificing the pleasures of ‘noctambulism’ simply on environmental grounds is actually a good thing.    From Wordnik.com.  [Ballardian » A Near Future: Nic Clear’s Tribute to JG Ballard] Reference

Sleepwalking, also called somnambulism or noctambulism is a sleep disorder where a person will engage in movements, actions and routines that they would normally do while they're awake.    From Wordnik.com.  [LearnHub Activities] Reference

Sleep walking or somnambulism or noctambulism is not a dangerous sleeping disorder as such in all cases, but in some cases this could lead to health risks those could be cause of physical harm.    From Wordnik.com.  [xml's Blinklist.com] Reference