I plug my phone in when I go to bed, and it turns off at some point during the night. It has been doing this a lot lately. I have had the phone since Black Friday. This is very inconvenient because I use the phone as my alarm clock! I took it to the store on more than 1 occasion. The first time they found a corrupt file/app and removed it, and said that should help. NOPE! I have also removed any downloaded apps that I dont use frequently thinking that 1 of them may be the problem. NOPE! The next time I went to the store I was told that this is a known problem, especially with phones that dont have a removeable battery, and that I pretty much have to deal with it! This problem has happened now almost a dozen times. Any suggestions?