Premium passenger being a prat - difficult situation for the CC.
Nevertheless I'm astonished that nothing was done.
Sometimes something can be done - some years back, I was travelling up front with AA from MIA to LHR when a passenger across the aisle, despite being apparently fast asleep, left his Walkman on so loudly that no one around him - especially me! - could get to sleep because of that dreadful hissing noise. Having tried unsuccessfully to get his attention, I lent across and gently pulled the lead out. He stirred, woke up, looked around very puzzled, shrugged, and reconnected his Walkman, then dropped off again. I only had to do it twice more and then everyone else dropped off to sleep ....
Jack
PS Yes, I know I shouldn't have ....