Is it normal to get really scared at night?

I'm ok in my own little flat, but I'm temporarily living in a relatives big house now because she went on a holiday and wanted someone to look after her stuff here, feed the cats and stuff. There is this gang round town that broke into my auntie's car twice already, and I've read that one of their members was arrested for double murder recently. The town itself isn't even that rough, but this particular part of it has been really bad recently..I massively panic over every tiny little noise I hear when it's dark now IIN??