Ok, this is probably a monumentally stupid question, so please forgive me. But I was wondering: I turn all my wifi and 3G off when I go to bed, because I just don't need instant email or fb friend requests when I'm sleeping. It just eats battery. I keep 2G on so people can call or text me in case of emergency. I also toggle autosync off. I do not have very demanding sync settings, everything updates once per hour, but do I need to turn it off? Can anybody tell me how the Android syncing works? If I leave syncing on and internet off, will it turn on the internet to sync at schedule or will it patiently wait untill I switch the wifi back on? Edit: I have an Xperia Ray, stock rom.