On the recent Edge Transatlantic from Civitavecchia, we were in SV 11273. While in the Med, we did hear some "louder than normal" banging and creaking, apparently from the ceiling area, bordering the neighbouring cabin. But the noise was intermittent; we actually joked about it with our cabin steward.
However, once into the Atlantic, with a few nights of higher seas, it was no longer a joking matter. The noises kept me up on a couple of nights. I have never heard such cacophony in a ship's cabin! It was not normal creaking that we've always experienced on every other class ship ... this was far different. It sounded like a loud hammer banging above us ... all night long!
We actually were compelled to inform Guest Services, wondering if something was wrong. They sent a maintenance "joiner" who looked at the walls. We pointed out that someone had inserted several shims into seams between the wall and ceiling overhang. Clearly, we weren't the first guests to have been disturbed. The guy wouldn't really comment, but he said that he'd check the cabin above us. Did he? Don't know. But the seas did calm down for a few days and the noise was diminished. Never entirely, but enough so that we could sleep.
Now that this thread has pointed out the noise issue on Edge Class ships, I'm wondering if we need to expect that this would be an ongoing problem? For us, another reason to avoid Edge Class. Loved the Transatlantic experience (as always); did not love the ship.