Everything I say can be fully substantiated by my own opinion.
I've always had a hectic life. The world is full of glaring lights, noise and general chaos. So, when I come home, I like a peaceful sanctuary that's quiet, cool and dark.
What about when you wake up on a beautiful weekend morning? The dark doesn't feel overwhelming? Just curious. I've visited two homes in the last five years that were just absolutely like caves when I entered. It's obviously not what most people prefer, and I was fascinated by what life must be like to always come home to darkness. Thanks for your answer... makes sense, except that it seems a little weird that both people in each of these homes like it like this...but, obviously they must.