Originally Posted by SilvrSurfr
I don't think my synthetic Quallofill 0* 3.6 lb sleeping bag has lost any insulative properties over the last 20 years. Maybe it still insulates because I have never washed it, though it is washable. It has certainly gotten plenty wet over the last 20 years, but I always knew when I crawl in that I will be warm, wet or not.
I think I'm gonna make a pod out of it or something.
I don't know what kind of insulation is in my 20 something year old Coleman bag but I have the same experience as you. It still kept me warm down to 23 at the hang a couple of weekends ago. I have never washed it and, since it didn't come with a stuff sack, it has always been stored uncompressed in a garbage bag.
It has been a great bag but for me the deal breaker is the weight and size.