Currently Being ModeratedMay 7, 2013 5:20 PM (in response to whipper405)
You probably have stuff running in the background. Notifications, or an app that's updating. Do you have your mail set to push? That means your iPad is going out and grabbing mail at regular intervals, even while it's asleep.
Currently Being ModeratedMay 7, 2013 5:22 PM (in response to Skydiver119)
I'm not sure what the OP means by "shut the iPad off," but I interpreted it to mean powered off completely. (For the OP) if that is the case, then there would be nothing running.