I tried winter camping for the first time and liked it but I was relying on the stove. I had another bag to put on top and it wasn’t that cold. I was looking for a bag that can take everything in the whites and Maine I would like something that I can take anywhere around here with some add ons like liners and stuff. If I want to be able to do everything in the whites including some stuff up at some elevation what temp rating should I go for I was looking at either something like the MH phantom 0, Rab neutrino 800 (-10), or something -20. I just would like to stay away from -20 if I don’t have to because all the ones that are reasonably light are like 800