I have the 49DS with the master cabin forward, and used to have the 43DS where I tended to sleep aft. On boats with a sugar scoop you can get wave slap on the transom, particularly when at a dock
. I have come to really like the forward cabin arrangement but the big forward bed
is useless when underway at sea.
I spend most of my time at anchor
in the Caribbean
and find that I turn on my fan when sleeping in the forward cabin despite having 2 dorades that feed fresh air into it. The aft cabin, with 2 side and 2 upper hatches plus the doors to the main cabin or the aft head
, gets more ventilation.
I have been playing with the idea of the 57 and would most certainly choose the aft main cabin, mainly because that way I could convert the forepeak to a workroom and access it from inside the boat.
The stern main cabin is most likely going to be larger than one forward - but with my J49DS I still have a huge double-bed but no walking room to the sides of the bed
p.s. The anchor chain noise
isn't bothersome since you have a bulkhead and some distance to the windlass
or snubbing point. The Jeanneaus tend to sail quite a bit at anchor in the wind
but it isn't excessive and I sleep a deeper sleep forward where I know the feel of the motion than aft where all the "action" is 50 feet away...