Greyson has been going through the 'there are monsters in the house' phase and i said one thing a few nights ago that has apparently did the trick.
I told him there couldn't be any monsters because i put a special mom force field around the house that monsters can't get past.
Ever since when he walks towards a dark room he goes 'haha no monsters here' and walks through when before he wouldn't even go in a room if the light was off at night.