Why is it so hard to go to sleep and get up

I failed again today. Set the alarm for 6 am and whack goes my hand on the button. Just then out goes my chance to ride before work.
Yesterday I did an early morning ride and an early evening swim. Last night I had the best of intentions. But then Survivor begat The Apprentice and The Apprentice begat The Daily Show. And I am Oh so close--so let's watch Hpward Stern on Letterman. Bango---I cannot get up.
Now what was so important that I had to stay up last night? Maybe I can recover later today?