I would not attempt to store bedding or clothing
anywhere that has communication with the bilge. Our clothing
is out in the open. The hanging closet is heated by the refrigerator
and has a cloth screen
"door". 400 pesos gets everything washed regularly. Anything else would be a smelly disaster.
In a plastic bin, or plastic bags, can work. But it can also fail spectacularly.
My experience is both here in the steaming tropics and foggy damp California
. The best place for pretty much everything is the Sea of Cortez
and Mexican Riveria in the dry season. No dampness is possible. Wonderful.