Somnophilia is the urge or desire to have a sexual encounter with someone who's asleep. Somnophiliacs or persons with Somnophilia are aroused and get excited sexually by sleeping or unconscious individuals. Somnophiliacs comes under the classification of predatory paraphilias.
People who have somnophilia may not wish to cause harm or force violence on someone but they receive sexual arousal and orgasm by intruding on and touching or fondling a sleeping person. If these urges are acted on as part of a consensual fantasy scenario, this can be perfectly safe, fun and legal. Those who can't control urges around somnophilia may seek treatment.
Related Journals of Somnophilia
Brain Disorders & Therapy, Journal of Depression and Anxiety, Journal of Neurological Disorders, Journal of Psychiatry, Journal of Sleep Research, The American Academy of Sleep Medicine, Sleep Medicine, Sleep Medicine Reviews, Nature and Science of Sleep, Sleep Science, Sleep Medicine Clinics.