What is "somnophilia"

n. A paraphilia in which an individual becomes sexually arousal by someone who is unconscious.

Somnophilia (from Latin "somnus" = sleep and Greek φιλία, "-philia" = love), also known as sleeping princess syndrome and sleeping beauty syndrome, is a paraphilia in which an individual becomes sexually aroused by someone who is unconscious. Sexology scholar John Money stated that the condition has a high degree of correlation throughout history with incest and may progress to necrophilia. The Dictionary of Psychology categorized somnophilia within the classification of predatory paraphilias.