My first work flight to Europe (about 30 years ago) I was upgraded to first class upon getting on the plane. First class at that time was in the nose of the 747. Business class was on the 2nd level. I walked into the nose and found that I was the only one there. Because the nose is basically a triangle, one of the results is that one seat is isolated all by itself. I choose that seat and thought "cool, I'll be like Captain Kirk on the bridge". Being young (~21) and inexperienced, jet lag was not on my mind - I was looking forward to my time as Captain Kirk.

A few other passengers can onto the "bridge" and the a stewardess came in and asked me if I'd like a drink. I had about two drinks before passing out. I slept all the way to Europe and was somewhat miffed at myself. But upon arrival I found that I did not experience any jet lag. Over a year I did the same trip a couple more times, was not so fortunate to be placed on the bridge, get free drinks, and be comfortable. On those trips I did experience jet lag.