Comfy!

I think you’ll be glad you went with 5” foam! Looks good!
BTW, I found some mesh hammocks that I suspended from hooks on the anchor locker bulkhead and underside of side decks; very handy for stowing life jackets, towels, etc. and keeping clutter off the bunks!

So how much do you think you have in the project? (Your time excluded of course)

The materials cost $487.00 approximately, as follows:

Sunbrella fabric 5 yards 60" width: $130
5" Reticulated foam: $325.00 (I ordered 4" foam at this price, and they shipped 5"!) measures 30 x 72 inches, two sheets

Basting tape 3/8" x 60 yards : $16
Spool poly thread: $6
1 inch velcro 10 meters: $10

Also, 1 yard of striped sunbrella-like product from Walmart at $10 - nice accent, since I did not have enough of the blue to do the center square keystone..

We stitched everything on a standard sewing machine, but did not try to stitch in piping on the seams since I thought that would overload the machine.