Umm, if hot Northern Euro/Scandi girl came with bed
springs I wouldn't get a moments sleep with the wife beating me over the head
We had a froli system when we bought the boat. Got rid of it, of no real reason other than we re designed the interior
and the bed
design was a different size. Having slept on it for 3 months prior to shifting it I can say it made a difference.
We have closed cell foam mattress with two densities, just like memory foam. The bottom foam is hard and 10 CM thick with a soft c,owed cell foam of 4 CM. it is just like a very expensive memory foam mattress you would find on land but didn't cost a tenth the price
. Since we were starting from scratch on all our bedding and seating it seemed best. It is an incredibly comfortable sleep at anchor
...at sea I could sleep on a rock and be happy as I am usually very tired...
...only consideration is that we designed it in several parts
so when we are off the boat or after a wet passage
we can lift
it up to dry or keep dry.