Night owl

Night Owl is a lifestyle trait introduced with The Sims 3: Supernatural. ''Some Sims love the night life and occasionally feel the need to boogie. They are called Night Owls. While Night Owls might come alive at night, do not even bother getting them out of bed before 10:00AM.''

Behaviour

 * Your Sim will find several activities much more fun when it is late at night.
 * Your Sim's mood will suffer if they are awake too early in the morning.
 * Your Sim's mood will benefit by staying up late.