When I was single trader chick, I used to wonder why the married guys with children always seemed so tired. I lived alone with no pets. I would think to myself "These guys should just go to bed earlier. Why don't they just get more sleep?" Two babies and a 17 pound cat (who likes to sleep on my head) later.....I get it! I need more sleep, the babies get up in the middle of the night, the cat sits on my head, this house never stops....I need more sleep!