I realized every after few minutes, my iPod disconnects itself from wifi. I have to click the home button so that it will reconnect again. This happens every night. What bothers me is that when I wake up in the morning and click the home button, that is only when the notifications from Twitter, Facebook and Instagram are rushing in like a river. My friend's iPod touch (also a 5) does not disconnect from the internet. His connection is 24/7, so that when he clicks the home button, the notifications are already there.