You searched for: “nyctophilists
nyctophile, nyctophilist (s) (noun); nyctophiles; nyctophilists (pl)
A person who has an abnormal preference for darkness or night: Mary's neighbor, a nyctophilist, had a preference for being active at night, when it was dark and quiet, like going for long walks and listening to nature's sounds without traffic noises, sirens, and firetrucks disturbing the peace.