I guess my question more is (and this may very well be a dumb question) if I left the boat in the water over night, is there a chance the boat will absorb water through the gel coat? I'm not overly worried about the anchorage, it's pretty protected.

Alternatively, if I dragged the boat up on to the beach, I could some how rig a tent on the boat instead of bringing a real tent. Although that might be more hassle than it's worth.

A Nacra 20 might not be the best camping platform, but whatever.