As we have seen on other occasions, there is a wide range of paraphilias. Somnophilia is characterized in that sexual arousal and orgasm are obtained by sexually interacting with a person who is sleeping .
The word somnophilia comes from the Latin root "somnus" which means sleep and the term "-philia" comes from the Greek and means love. People who suffer from it feel the need to have sex with a person who is drowsy or totally unconscious, so, in extreme cases, they may use some kind of drug or drug to induce sleep and achieve your wish .
In the dream state within the REM phase, the body experiences both nocturnal penile tumescence or spontaneous erection of the penis and erection of the clitoris, in the female case, circumstances that favor penetration, fellatio or masturbation in both cases.
This paraphilia that involves sleep is also known as the "Sleeping Beauty Syndrome" , in reference to the children's story by Charles Perrault in which a young maiden is condemned to a curse that forces her to remain in a dream state for a century or until a kiss of true love wakes her up. This relationship between the man who admires the beauty of Sleeping Beauty and the excitement or attraction towards it, have made this story a clear analogy of somnophilia.
