HotDog:
That's a good point about what one does during their rest period. We are responsible for that, and it is our duty to show up for duty in decent shape to fly, or call in sick. Unfortunately, pilots are human too, and have an historical propensity for "toughing it out", perhaps because we tend to believe that is what is expected of us. Ego, peer pressure or just a desire to go with the flow, I don't know. That CVR would tell us quite a bit if we could hear the raw recording I believe. Thank you for your responses.
Best,
Westhawk