Sometimes after intense exercise, I will become very sleepy and require a nap. Sometimes, exercise doesn't affect my sleep at all. And sometimes, I won't be able to sleep at night.
I have a very regular sleeping pattern - in bed by 10:30-11 pm, and up at 8. I usually fall asleep within ten minutes. But on certain high intensity days, I find this doesn't happen. An hour of intense work starting at 3:30 in the afternoon could keep me awake for half the night.
Does anyone know why this happens? And especially, does anyone know a way to mitigate this problem? Some sort of cooldown routine that will keep my sleep regular?