We were in 6135 on the Ascent in January. "Snap, Crackle, Pop" was very annoying during the day, but made it very hard to sleep at night. After second night of limited sleep (hard mattress was also responsible), we went to Guest Relations. GR said they would send someone to look into the problem. To our extreme surprise, the noise was gone -- totally gone! I recommend going to GR with your complaint.