My iPad3 (ios5.1.1) chirps or dings often in the middle of the night waking me up. I like to have the notifications, but I dont want the noises. How can I mute them? My iPad is jail broken if there is an app for that. All I want to hear is music that I select, videos that I watch, and keys that I type. I would like to mute everything else. Any help with this would be appreciated.