Katabatic Gear in Colorado?
https://katabaticgear.com/shop/palisade-sleeping-bag/
Whatever you buy, don’t waste your money on the mythical 900-950 fill power down. In the backpacking real world 850-900-950 fill power down doesn’t exist.
The new revised down testing process requires that the down be “conditioned” in a laboratory for a week before being measured.
How do you reckon you can do that out in the woods?
750 down in the 1990s is still the best.
Wayne