I wonder who is getting up every day including weekends and holidays at 5 am or even earlier. This is the field where I have been struggling for a year, maybe. The most successful experience was in February-March 2006, when I was able to get up at 5 am 18 days without a break, but it was not enough in order to make habit. I even create a page for those who what to make transition from owl to lark -
http://LifeIdea.org/5am (in Russian) and this surge plenty of enthusiasts who decided to make such habit too. But still, I have a desire, but not have a habit.
Will be glad to hear about successful experiences, when someone was able to get up at 5 am 30 days without break and continue to do this right now.