I agree with PointWeasel 100% - I always travel in business class, and it is VERY COMMON for the flight attendants to all gather in the forward galley and talk all night - loudly - which causes a disturbance to the passengers in the pods.
This problem is particularly bad on the 767 trans-Atlantic flights.
I remember that years ago, Singapore Airlines had signs posted in the galleys that read "Speak Softly and Work Quietly". I wish Air Canada would make up some of those signs and put them in the galleys of their aircraft.