I love sleep. It is one of my favorite activities. That probably sounds pretty sad to most people, but it sounds really good to me. People usually stay out because they don't want to miss anything. I leave the party earlier because I don't want to miss any sleep.
When I start a new job or activity I love I will be on time or earlier for probably the first 2 weeks. After that I am always late. Which makes me think if I was offered a million dollars to wake up at 6 am every morning, that 2 weeks in I would be laying in bed at 5:58 am telling myself I can make a million dollars another time. Sleeping is the best choice for me.