I had to return to Cyprus after Christmas leave in 1974, departing 0500hrs on 1 January (I kid you not). Reporting to Swindon by 2100hrs, it doesn't take a rocket scientist to deduce how the intervening hours were spent.
Aircraft turned out to be a Belfast with about 10 rows of (proper) seats installed. It was like flying in a barn but, as we could lay the seats near-enough flat, and were feeling absolutely no pain, it was a great flight. Got back to Epi just as the bars were opening. Happy days !!