This is what I do, with a little yellow led reading light. The light is very important. Red might be better (last rally codriver said it's easier on his eyes at

This is what I do, with a little yellow led reading light. The light is very important. Red might be better (last rally codriver said it's easier on his eyes at night...) but haven't tried yet. On another note it also helps to pay attention to my heart rate and what I am thinking about. IE if I think about scaling an in memory graph db my heart rate jumps and I can't sleep. Maybe common sense but fun to play with.