I’ve heard many stories of ONE of the pilots of a two-crew flight deck taking catnaps, and I find it acceptable. After all, that’s why there’s two seats up front, right? I’d rather my pilots be fresh and alert for the approach and landing - not so much attention needed during cruise. But BOTH pilots at the same time? C’mon - wake up the FO and tell him it’s your turn
Single pilot…? Well, I’m just glad to be able to say that I’m glad you’re still with us to tell the story, leardvr!
As for me, I simply cannot sleep in moving vehicles! I guess I’m afraid I’m gonna miss something. I once flew first class on a redeye from SEA to PIT. God knows I tried like hell, but I just can’t do it. Going on a redeye from JFK to Frankfurt, Germany - no winkin’, blinkin’ or nod there either! Like snowfall2332 said, there’s just too much “JAZZ” goin’ on to sleep! Same with trains and automobiles as well.