Aside from all the typical ideas to stay warm in a hammock (you know, cold butt syndrome) what are some unique ideas (and lightweight/non bulky) that you can share? I’d like to move beyond the norms: underquilt, sleeping pad, etc. What creative solutions have you found for your underside that don’t weigh a ton, don’t take up tons of space and haven’t been tossed around in magazine articles. Go!