Rose, it sounds like your computer is not turning off, but rather going into "sleep" mode.

Check your settings in your bios and see what is selected.

There are usually options to turn on by network activity, mouse, keyboard, etc.

I don't think it is posessed... If it were, your printer would be sending you messages to read when you woke up.... (devil) 

"Genius ain't anything more than elegant common sense." Josh Billings