Very strange obviously dependant on position but in 20+ cruises this is by far the quietest a cabin has ever been, I know the waters have so far been very calm but we have not heard the slightest creaking and we have never slept so well on a ship.
FYI we have an Infinite Veranda cabin on deck 7 right by the central elevators. One other thing we have kept the folding doors open all the time. No idea if they creak if you close them.