So...seeing all the references here about using wool blankets has me thinking about the one that followed me home one day from when I was in the Army. It has been wrapped up in a plastic bag for 15 years and I'm not even sure how old it was before it was issued to me. I was thinking I might pack a rolled up fleece blanket on those trips where I won't need a sleeping bag (I use one at home and am amazed at the warmth). Now I'm wondering if I should instead try my old Army blanket? It does not pack as small as the fleece blanket and probably weighs a bit more.