there is a paint that has a warm touch additive to it. I think it has some microscopic beads or balls in it that give it a bit of insulation quality. Anything to insulate the bare hull in that berth will help keep it from getting wet. You could also use spray on foam. Probably a better bet would be to get some carpet and use spray on or brush on contact cement glue to glue it to the hull. Then get a fan that mounts on the wall and keep it circulating the air, and that would really make it nice and soft and dry in there without requiring shore power.
Living, Loving, & Cruising on a 1968 Islander 37' sloop:
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