Hello all, I've been hanging since 2011 in numerous DIY hammocks and recently have been using my 11' Argon 90 coyote brown from Dutch and I love the feel of the fabric. After @ 3 weeks of every night use it seems that I 'sink' down more into the fabric and have developed a kind of body squeeze. The last 2 nights have been very uncomfortable and this morning I woke up with a knot in my right shoulder. Since all else is the same with my hang I'm thinking this excess material sag is the culprit. Has this ever happened to anyone else? Is there a slightly stiffer material (but with the feel of the A-90) that you would recommend. Where does A-90 fall in the categorizing of these hammock materials? Thanks for the help.