I bought this bag a number of years ago for less than 40 dollars. It has since become my standard sleeping bag for all seasons. I've camped in 17 degree temperatures, snowstorms and freezing rain and was completely comfortable in it. The bag is very spacious, I'm 6'5" and 260 lbs and don't feel even remotely crowded in it.
The bag will compress to the size of a one gallon milk jug. It is a bit on the heavy side but for the price you simply can't get a better 0 degree sleeping bag.