We were on the Dawn and stayed in 11562 which would be a room to avoid. There was some kind of noise all night like metal being hit. I was on the same ship 5 months later and mover down the hall about 10 rooms and it was fine. You also want to avoid rooms that when you look at them on the deck plans are over or under blank areas. Sometimes these blank areas are air conditioning units or other machinery that make noise. Always look for rooms above and below you.