I'm not using anything over the top fancy. There shouldn't be any wool used in most modern down or synthetic bags and if wool is a no-go, use synthetic base layers instead.
My two person bag is a Kelty two person double wide-
https://www.kelty.com/tru-comfort-doublewide-20/, this stays in the tent with two pillows, year round. I will always forget a pillow if I have to pack one and I don't sleep well without one so it's been really nice to have two pre packed in the tent.
My main bag for all camping trips is an older Marmot 15* down bag. Might have been called the Pinnacle, same stuff as most other mid priced, down, backpacking bags. I have one other super lightweight travel style bag that can be mixed or matched with other bags for any temp range. Having multiple bags has given me a lot of versatility for different conditions.