I was only recently clued in to Wiggy's. Today the Wiggy's bag I bought of eBay arrived. It's in good shape and although I'm not sure the precise model I'm d@mned impressed! Very well made and very, very warm. Mine seems to be rated to 0 F (bases on the weight, plus a tag on the bag) so I'll probably be picking up another one for warm weather camping, maybe the Slumber. It's cheap and should be good for warm weather. Plus it could also be an overbag for my other one.

While it's expensive, I think their poncho liner might be a really great piece of gear. Lamalite is supposed to allow moisture to wick thru, so it might reduce the clamminess a bit. And based on what I've seen of the fill it's very warm. And the fact that it's 100% machine washable is a great bonus for something that will see a lot of dirt time.