I am thinking of replaceing my sleeping bag rated for extreme cold temps for another one rated at a -30/40 degree rateing. I have a Cabelas Guide Model, regular size, and sometimes it just doesn't cut it. I like the -40 temps rated bags but not the big prices. What are some other brands to consider (under $300.00). I also am considering this as a good time to get the long size as opposed to the regular size so I can hide my face inside the bag when it is pretty cold out. I think the same brand in the longer size, coldest rating, might work but I still wonder if there's a better sleeping bag. Also when it gets really cold I keep the heavy gear I am wearing on. Any Suggestions!