Mr WSM and I flew SYD-AUH in 9H and 10K a couple of weeks ago. A large group of friends monopolised the lounge for most of the flight (they seemed to be doing it in shifts) and there was significant noise from the lounge for most of the flight, plus foot traffic backwards and forwards from their seats at the back of the plane. I found it very difficult to get any sleep with all the noise. They were asked a few times to keep noise levels down but they gradually rose again each time. On our following AUH-LHR we made sure we were sat well away from the lounge!