Night eating syndrome. The sleep-related eating disorder form of sleepwalking is to be
differentiated from night eating syndrome, in which there is a delay in the circadian rhythm
of food ingestion and an association  with insomnia and/or depression. 
Comorbidity
In adults, there is an association between sleepwalking and major depressive episodes and
obsessive-compulsive disorder. Children or ad ults with sleep terro rs may have elevated
scores for depression and anxiet y on personality inventories.