In defence of the the said Captain, please check out the following link (see second paragraph) in which NASA conducted trials regarding short naps in the flightdeck.
http://health.discovery.com/centers/...rosekind3.html
What we found was that performance was improved 34 percent and their alertness was improved 54 percent. I always challenge people to name another productivity tool that's as simple and straightforward to help improve performance, productivity and safety as a quick nap.
Conclusion: a short nap during the cruise actually
improves flight safety!
Which airline can actually in good faith prosecute an improvement in flight safety?