I have too, CM, and I wish I could get my hands on a few cheap. At least one store was reported to have them on clearance for $10. But, I neither live anywhere close to a Costco (it's not an online item) nor do I have a membership. If this is an option for the OP, however, I'd love to hear how it goes. Hammockforums.net has a lot of info in the DIY section about optimizing these for camping, including easily resizing them without having to open them up and mess with down and getting the most loft out of them. If one isn't warm enough, you can double up.