Quote Originally Posted by jasont View Post
I'm an early riser and an early to bed person.

Up at 0420, workout, breakfast and start work at around 0600-0630. I really value the early morning time for clearing my head, working on key projects etc. I'm very productive early in the AM and it's some of my best time. Because of the crazy awake time I do go to bed between 9-9:30 every evening. Staying up much beyond 10:30 will pretty much render me useless the next day!

The above noted, I recently listened to an HBR podcast and one of the discussions was on people who are naturally wired to get up early and those who were later risers. I definitely think that trying to force something that is not natural is not always a good thing. Give it a shot for a few months and see what happens!
Do you seriously sleep and rise at those times consistently? I just find life to never be that forgiving much like the philosophy behind GTD with its 'in the moment' decision making based on the topsy turvy nature of life and ourselves.