OK first off, forgive me as I am posting this for my wife, who is at work. Her iPhone will not go to sleep after periods of inactivity. I typically put my to sleep with the sleep/wake button, but she's new to the iPhone and just wants it to go to sleep after a minute of two of not using it. Auto lock is set at 1 minute. Auto brightness is on. I can't seem to think I what else it could be. My phone does it after what seems like no time. Any suggestions? Her battery life has been awful as a result of the screen always being on.