velcroed together "mummy" bag, made of heavy duty Space blanket, with a removable, velcro on "hood" of the same material, with a draw string. Most parts of the US get damned cold at night, at least part of the year. Add rain and wind and you can easily be in BIG trouble, even if its 50+F degrees. This "sleeping bag" can also help gather rain, dew or frost, catch insects, gather seeds, reflect heat off of you or back to you from a fire, etc. Wt, about 1 lb, cost $10 and some time spent glueing and sewing the Velcro. Need proper clothing worn inside of it, or the retained body moisture will freeze you, and need a silk bag liner to go with it, but no zippers to jam or break, no "leaks" of stuffing if it gets torn, and getting it wet doesn't ruin it. It will roll up smaller than a military poncho. You can set it up to walk in it, sit around in it, too. It does tear, but you have to work at it, and it's easily patched with high grade tape, or with the sewing awl that belongs in your kit.
Last edited by bonney; 11-24-2012 at 03:29 AM.