I'm a morning person. My energy is highest when I wake-up. I can get energy bump after a lay-down, but it's never as high energy as the morning energy. If I'm low energy in the morning, I mine as well go back to bed for the rest of the day -- because by evening I'll be crawling up the steps.
I do get a pick me up from the occasional evening glass of wine though.

Something to do with the sugar.