For everyone wondering, i can get the regular size bag to compress down to 12" with a 9" diameter in the sack provided.
I am a very cold sleeper and this bag is Toasty. It is pretty bulky, but that just makes it extra comfortable to sleep in. The zipper snags bad if your not careful. At this price for a 0-degree bag it was easy to overlook a little inconvenience. It also has a little zippered pocket close to your face on the inside which easily fits a recently recalled 1 pound can of spaghettios with room for a clif bar or two.
Real lightweight, enough gear space for sport climbing.
It took me a while (months) to get used to, but after hanging on it for a while it is no longer uncomfortable on the legs when sitting after a fall, or holding someone else after a fall.
This bag is great. It has a little translucent square so that you can see what rope is in the bag without opening it. The tarp is massive and has a separate pouch to put the rope into before you roll it up. Keeps clean and real easy to pack/unpack.
The fruit and nut mojo bars are good, real good.