For sale is a Marmot Helium 15 degree down sleeping bag in the long version. Left side zip and in great condition and has barely been used. 850 fill down and a very solid bag. Asking $250.
Yes, I’m the original owner and have always stored this bag uncompressed. Just washed it per the manufacturer’s recommendations in preparation to sell.
I have the same bag and the temp rating as per me is accurate. I have had mine down to about 10 degrees and was pretty comfortable with just base layers on. Has more loft than all my other 15 degree down bags. I would say it shines for lightweight cold weather camping.