I used a tight mesh fabric
, the same stuff that's used to make line bags. We sewed a lufftape along the edge that goes under the sleeping cushion and screwed a matching luff foil under the cushion where the bench meets the cabin
side. This way we can remove the leecloth for storage
or repair/replacement. This is an extremely strong attachment.
I would be hesitant to just use a person's weight on a mattress to keep the leecloth in place. On our boat
we sometimes do stupid things like flying a spinnaker
in squalls, and we occasionally end up on our side. But regardless of how you sail your boat
, the leecloth should protect you in the extreme cases, not just the uncomfortable ones.
I have reinforced grommets at the top edge of the cloth, that are lashed to the overhead grab-rail and some pad-eyes I installed on the fore and aft bulkheads. We use lines with snap shackles to the padeyes, and rolling hitches for tensioning. Obviously the attachment points will vary with the boat layout.
Using this method we can tension the leecloth to elevate the bunk cushion on one tack it the heeling would otherwise be uncomfortable.
We also sewed pockets in the inside and outside of the lee cloths, for temporary storage
of incidental items. This has proven to be quite handy.
I had my "canvas guy" make these for me. The time and materials were quite reasonable, since there weren't a lot of fancy curves or tight measurements.