Yeah I do get my stuff ready before I go to bed. Trouble is I'm often scrambling around doing other stuff, too, and by the time I get it all ready and get to bed it's really late.
I used to do the split commute thing, but got sick of having the bike rack on the back of the car all the time.
It doesn't matter what I do at night or how early I get to bed, I still have to drag myself up in the morning. Sometimes it takes as much as 30 minutes of alarms (starting at 4:30) to get my butt up.