I get up Monday through Thursday at 6:30 in the morning so I can be at school by 9:30 (LA morning traffic, if I leave past 7, I'm typically late). Friday there's no class, but we hit the lab the entire day, however since I also work full time Wednesday-Sunday, I have to be in the lab no later than 6AM so I can get 6-7 hours worth of heavy research in before I go to work, so I usually get up at 4:45 for that. Saturday and Sunday I'm up at 6:15 so I can be at work by 7AM. Monday and Tuesday I also go to the lab after classes, so I'm usually out of there by 6-7PM.
The guys I'm doing research with all have their schooling and housing paid for by their families, plus they get an allowance (although by doing research and being TA's we do get a nice discount on our tuition) so they don't need to work or anything, and they're always inviting me out to hang with them on weekends. If I'm not working or doing school stuff I'm typically trying to fuse into my couch with a beer.