Oh my goodness! I just looked at Win7 Task Scheduler. It is SO much more complicated than in previous versions of Windows where you just had a tray icon that opened up to a handful of expected tasks.
In Win 7 the list of scheduled tasks is quite overwhelming and full of technical tasks that are beyond me.
But as I expected, there are a few tasks that are scheduled for the middle of the night. I say expected, because I have seen this in the past where programs like to download updates or the system likes to do things like defrags during downtime.
The reason I have never paid attention to this in the past, is that if the computer is sleeping, it doesn't know the time for a task has arrived, and therefore cannot wake itself up to perform the task.
This has always been the case for me in the past, and I never had a computer wake up for a scheduled task before, and neither do my other computers. Have things changed?