Here are some pictures of the kind of under quilt I make for the 90 degree lounger & sleeping hammock. Instead of one long channel for the shock cord, I make several channels so that I can run the shock cord through mitten hooks, which I hook onto the hammock. This allows more attachment points to snug the underquilt to the hammock, especially under my knees. I also add a foot section to the underquilt. It is hard to see the shape of it, but the last picture shows the basic shape.
IMG_1496.jpg
IMG_1495.jpg
IMG_1498.jpg
Untitled.jpg
As for modifying commercial underquilts, I haven't done that myself. Regarding underquilts, the challenge of this design (look at the picture in the original post) is getting the underquilt to follow the curvature of your body in the hammock. That's why I make my underquilts with a lot of attachment points. You would want to add some more attachment points to most commercial hammocks, I think.
Bookmarks