Nyctophilia is a sexual fetish or preference for the darkness or night. This fetish is also referred to as scotophilia.
More About Nyctophilia
Those who experience nyctophilia have a strong love of or preference for being in the dark. These individuals often feel like they belong in the dark and are most comfortable in the absence of light. Nyctophilia may cause a problem if the individual develops a vitamin D deficiency due to the absence of light in their lives.