Thanks for all the info!! I do move some but I don't think that I normally roll, unless I'm on quite a slope. One more question on down vs synthetic though. I can dry out my synthetic bag fairly quickly and easily. I was assuming that down would be more difficult. I can dry out my synthetic bag on a hot and humid afternoon by throwing it over a line for an hour or 2 depending on sunshine and humidity levels. Will down dry that fast and how do you unclump it with out throwing it in a dryer?