It's always good to see you on here, John, and long may it continue.
I think we've all had that feeling, at times, that all is somehow not well, and, wherever it may come from, we ignore it at our peril.
MJ
Ps. Centaurus
I've also woken up next to a sleeping co-pilot, after weeks of constantly disrupted rosters and flight on the edge of the FTL.
Although our situation was less threatening than yours, It was a sobering experience, and reminded me just how insidious a thing fatigue is.