[Q] Nexus 4 shuts down at night for no apparent reason topic

OK, This is my problem. I own a nexus 4 which is rooted with the Wugs Nexus Root Toolkit. All the proper drivers are installed according to the toolkit. I updated the phone to 5.0.1 and re-rooted the phone successfully. Now with that said the phone works all day and when I go to sleep at night it shuts itself down and takes holding down the power button for a while before it will turn back on. 2 nights in a row now. I am not super tech savvy so if any one knows why this update has brought on this issue please clue me in. While searching for answers most people think factory data reset and that is no guarantee and seems to be a bit drastic. Google has to be aware of this issue because you can google the problem and it has a lot of entries about Nexus 4 shutting itself down after 5.0.1 update.