07 Our comforter in place, which does not prevent air from circulating through the HyperVent along the sides of the hull so long as the comforter does not touch the hull wall. 9/26/12 update: we ditched the comforter early in the season and continue to use our old configuration as described in our folder "Marinaut 215 Berth Set Up for the "Betty Ann"" We are also pleased to report that we have had no issues with condensation at all this year since installing the Hypervent.