I have accumulated some expedition sleeping bags as plans for some future expeditions, but life takes you on different paths, so here they are for those interested. Prices are OBO and buyer to pay shipping. Venmo preferred 

(pics in albums)

1. Western Mountaineering Bison GWS Long 6'6"($750 $700)  https://1drv.ms/u/s!AlpIVq3QkUvj5VUNFd0NXfqRHrfp?e=9b4lRE SOLD

This is probably the black totem of the sleeping bag world. I don't know of a better bag. Rated at -40º F/-40º C

https://www.westernmountaineering.com/sleeping-bags/gore-windstopper-series/bison-gws/

I bought this off of the famous Carol Mashter (http://www.carolmasheter.com/) who was the oldest woman in the world to summit the highest peak in each continent and she is a pretty inspiring woman. It is in great shape and comes with a compression bag

2. Feather Friends Ptargmigan regular ($475425) https://1drv.ms/u/s!AlpIVq3QkUvj6GMvRBcXTZ0-Zp0F?e=skeu5s SOLD

Fantastic bag and rated at -25ºF / -31.67ºC 

https://featheredfriends.com/collections/winter-expedition-sleeping-bags/products/ptarmigan-ex-25-expedition-down-sleeping-bag

I bought this here and it again comes with a compression bag

3. Valandre Shocking Blue NEO ($425 $375) 1drv.ms/u/s!AlpIVq3QkUvj6F9… SOLD

Very well fitting bag and rated at Extreme: -42.3°C Limit of comfort: -19.5°C Comfort: -11.6°C 

I go this bag locally and the bag looked like it was only car camped in. No compression bag for this one. 

Valandre is super well known in france so not as popular here, but just as high quality- probably one of the top two brands in europe along with PHD (Peter Hutchinson Design), nice summary here about the bag: https://www.outdoorgearlab.com/reviews/camping-and-hiking/sleeping-bag-down-cold-weather/valandre-shocking-blue

All three of these are awesome bags and were always store lofted NOT compressed.