Thanks guys. I think that all suggestions are very well accepted. I will try to book a cabin between 641 and 655. That should be "safe" enough so that minimum vibration will be felt. To tell you the truth, on the Navigator it did not bother me at all when I was falling asleep....it only bothered me when I woke up in the middle of the night and could not fall back to sleep.
Muchas gracias,
Maurice
