Writing Biorhythms

Do you have a time when your brain is better suited for writing?

I know I do. As a professional writer, I've trained myself to write any time, any where. However, the fact remains: I write better during daylight hours, preferably between 9:00 AM and noon.

Yesterday, I took Mason to the beach for three hours. We played and played and I thought for certain he'd be tired by the end of the day after all that healthy sunshine and exercise. He did get to bed at a reasonable hour, but then guess what? I