Keeping the cabin very dark is a real problem for some of us. I don't sleep on airplanes, nor do I watch the IFE. I read, listen to my music and do projects on my computer, just as I have forever. I get up often and walk around. This dark cabin/closed window shade situation is fairly new. People who want to sleep should bring eyeshades, the rest of us deserve to be able to move around the cabin as we wish. It's unhealthy to sit still for hours. I don't expect the cabin to be brightly lit, and I think a happy-medium can be reached so people can sleep, those watching IFE can be comfortable and the rest of us can move around safely.