Literally a heart attack on a bun
I've been listening to a book on tape by Jon Acuff called Quitter. The book came highly recommended by Dave Ramsey, and I like Jon (Plus I got the audio book free from audible.com). Quitter is all about going after your dreams, and chasing that thing you are most passionate about. I highly recommend it.
At one point in the book Jon Acuff talks about, "morning" and, "nighttime Jon." He said that his morning self hated his nighttime self. Mainly because his nighttime self was a jerk. It stayed up late reading about sports and watching movies. Morning Jon would always wake-up dragging and angry at nighttime Jon.
I can relate to that problem amazingly well, except I stay up watching Dr. Who reruns, surfing Stumble Upon, and playing Draw Something. Regret begins when I set my alarm and realize I only have 5 hours to sleep. OUCH!