sewing a chair kit for self-inflating pad

[helinka]

Does anyone have experience with this? I have a basic idea of what i want to do, but my prototype failed miserably. I'm using nylon for the body of the chair, webbing to contain the stays, and similar webbing for the side straps.
Has anyone come across a pattern for this project? If you can offer me any hints, I'd really appreciate it.

[grrickar]

I plan to try and make my own as well, so if I have any success I will share my plans. It looks deceptively easy, with the hard part being the stitching of the webbing.