Waking Up At Night

It's crazy how weirdly capable I am of things at night that I don't do nearly as well during the day.  It's like I have these nighttime abilities.  One example would be sudoku- I can solve the puzzles significantly faster at night, right before bed, than during other parts of the day. It is like a recipe for procrastination because I know that if I just wait and do my work in the evening, I will be more efficiant with my time and do better work because that's how I function in the evening. This evening ability makes me so inefficient.