A CD 36 does have the insert in the v-berth, so there are 3 cushions up there (port, starboard and insert). I hated that gap around the insert. So we bought a 2" memory foam topper mattress. They were on sale at Sam's Club for about $75. I've seen them elsewhere for up to $250-$300, even that'd be worth it.
On a CD 36, the v-berth is pretty wide, so we had to buy a king-size. Take the widest measurements, you might get away with a smaller one.
The foam comes as a rectangular piece. We laid the cushions out on top of the foam, traced the outline, and cut the foam to fit over all the cushions as one piece. (You could do it the other way if the cushions are on the boat and lay the foam on top and cut it).
The foam came with it's own mattress cover so I also cut that to fit, which basically meant cutting a triangle off each side and sewing down the two new sides. (There's a zipper across the wide end).
The foam does take up to 24 hours to expand out of its shrink wrapped package, and it also had a chemically smell that took a day or so to dissipate. (They warn you about it on the package but we didn't read it until we took it out the day before we launched the boat). So do it ahead of time and let it sit around a bit before you cut it.
It made an amazing difference in the vberth comfort. Not only did the valley disappear but it also gives better support. Even Rich, who was skeptical and insisted we didn't need it, loves it!
Like Bill C said, you can fold it forward if you need to get the insert
out.
Judith wrote:Melissa~
What do you mean "cut to fit the V-berth" and "got rid of cushion 'valleys'?" Though I've upholstered/re-covered many things in the past, I'm shying off a total re-covering of all cushions--for the time being--but would love to improve comfort in the V-berth.
Did you cut the new layer to size for the entire V-berth, including triangular insert (if the 36 has that)? I can't believe the solution would be so simple--but I'm quite ready to be convinced! It'd be wonderful not to have some portion of one's anatomy go numb after sleeping in the V-berth. . .
Judith