It?s a dream. Ok, so I?ve only owned it for 3 days, but from what I can tell, it?s a good one. I have tried out the mummy shape bags and they are just not for me. I gotta move and be able to express myself in different positions when I sleep and the mummy held me back. The shape of this bag was the first thing that attracted me to it.
The second thing that I needed was warmth. I freeze easily. With a 0 degree rating, I am hoping to be warm when it?s in the 40s at night. I am also planning on having an inner blanket/liner as well.
The fact that it?s down means it?s light weight. I haven?t actually weighed it myself, but it?s said to be in the 3 pound range. It can also squish pretty small, which is what I need for backpacking. It comes with a mesh storage sack and a smaller bag? known as a stuff sack, though I will not be using it because I have a better stuff sack with straps to cinch it down.
The unusual thing about this bag is that there is no insulation on the bottom. It?s a sleep system bag and is meant to have an insulated sleeping pad slipped into the under pocket. The idea is that insulation is worthless when it?s compresses, which is what you do when you lay on something. So, there is just one layer of fabric that separates you from your sleeping pad. If you don?t have a sleeping pad with this bag, you will not be very comfortable.
The sleeve for the sleeping pad is the full length of the bag. I have seen some other Big Agnes bags where the sleeve is only half the length.
This bag has a sewn in pocket for a pillow. It also has a neck collar. Both of which are very nice.
As mentioned before, the shape of this bag is what drew me to it, right off. I can easily roll over and over. I can have one or both knees up while on my side or back.
I am 5'4 and got the regular size cause I like the extra room. I look forward to sleeping in this bag both in a tent and a hammock. I'll post another review once I use it.