For the last few years, I have been going to a hunting camp at around 10,500' in early to mid November. I have an REI +25 degree mummy bag that I used in my backpacking days that just doesn't keep me warm when the temp hits +30, let alone +10 to +15, which has been a typical low at night in November up there. I use a little Coleman gas heater to stay comfortable, but hate to need it to not be miserable. Since weight is not a factor for this, what do you guys recommend for a nice, warm, hooded bag that doesn't break the bank? Somewhat important features include a zipper that doesn't keep getting snagged when trying to zip up, a lining that doesn't act like velcro and a hood/collar that snugs up. I guess a rating of 0 degrees would work, but I'd like the experts who have slept out there to chime in. Thanks!