Your FOV now decreases by 5x during the nights! as well as your minimap clear range being only half as effective as is it durring the day on top of that.
A little extra bit of fun is that during the nights the area outside of your FOV darkens on top of that.
Might be a good idea to set up camp to wait out the nights...and will probably help you stave off exhaustion which will take ten points off of your mood.