do you turn off your computer when you go to sleep or not? and why?

I shut my down, otherwise it'll go to a blank screen and freeze like that forever. When that happens, I have to unplug the stupid thing and get it to reboot. I know this isn't supposed to happen and that it isn't good . . . it's an old machine. LOL

I Leave mne on all the Time so that it can scan for Virus and other Problems while I'am sleeping also scan disc and everything else so that I dont have to stop using in the middle of the day so It can Perform these duties. I think I may have shut it down for about a week one time and the computer is about 3 years old also. Have a Great Day/Night.

Never. My computer is almost always doing something while I sleep, whether it be downloading or burning a DVD.

I will definately shut down my computer before i go to bed.I will hardly ever left my computer on for entire night.Just because i think i should let my computer rest since i'm not using it.

I don't turn off my computer because I usually fall asleep before I can even think of doing it. Also, I download while I sleep.