CM Mom, it's the same for me. My husband snores like a buzz saw and could sleep through an explosion!
And to give you an idea of how noise is a matter of opinion, here's a story:
I was in the Rainforest once, speaking to a fellow cruiser who was having a wonderful time except for the noise in their stateroom. They said the engine noise and vibration was driving them absolutely crazy and they would never stay in that room again. I asked where they were, and he said "5150." That is the mirror room to 5650, my all-time favorite! I can hear a little engine noise, but to me it's a pleasant white noise drone. There is vibration, but only when the ship is docking...it used to be my wake-up call, but after dozens of times in that stateroom, I sleep right through it. I'd rather be in that room than any other, yet someone else is miserable in the same spot.
Barb