If you were in a restaurant, I would do exactly as RibDog suggested. Since you're not in a restaurant and the meat was over 160* the last time you checked it, I would eat it personally as long as it was reheated to above 140*. I base this statement on two assumptions: 1)That you sleep an ordinary amount of time, like 8 hours or so, and 2)that the bacteria in the meat was largely killed off at 160* and that no new organisims were introduced into your cooker during the night.
I can give you more of an answer if you want it, but I'll leave it there for now.