Noctambulism is a related term of noctambulist.
In lang=en terms the difference between noctambulist and noctambulism
is that noctambulist is one who sleepwalks at night; a somnambulist while noctambulism is sleepwalking.
noctambulism
English
Noun
(-)
(rare) sleepwalking
Related terms
*noctambulist