This is a granma story so if you're not interested in how smart my grand daughter is, you can tune out now. I had picked her up from school the day their new baby was born and I had gotten up at 4:30 so they could leave by 5:30 so I told her I was sleepy because I got up about the time I usually go to bed. She said, "You're silly, Grandma." I said, "Well, I like to stay up at night and sleep in the day time," and she, at 3 years old said, "That means you're a NOCTURNAL ANIMAL" because they stay up at night and sleep all day. So if anybody asks, I am a nocturnal animal.