I woke up unable to sleep anymore, and saw the dawn twilight at the window, and thought I might as well get up. I went to let the dogs out; my older dog didn't feel like getting up yet though, not too unusual, and my younger dog refused to go out without the other dog, normal. When I went out to look around I realized the "dawn twilight" was a full moon and it's only 4:00 am.
I'm working on a long post trying to explain why my wife left me, and I'm thinking about the ways I failed her and all I lost, and I think that is bothering me more than the brace thing. Certainly thinking about that has kept me awake like this before.