User Review: Sierra Designs Arrow Rock 30
Temperature Rating: 30
Price Paid: $125
After my first trip last year using a standard Sierra Designs mummy bag, I was impressed with their product, however I found I wasn't fond of the mummy style. In searching for a replacement bag, I came across the SD Arrow Rock Flex bag and am very pleased so far.
I sacrificed 10 degrees in rating when I switched bags, but I gained at least 20% in freedom. The ability to comfortably side sleep, or my typical "figure 4" - one leg raised at an angle with foot at opposite knee was well worth it. I have only slept in it two nights.
The only reason I am not going with 5 stars is because I got a bit chilled right about 35 degrees.
I would have probably rather gone with the 15 deg version, but with the steal I got on the 30, I couldn't pass it up. If you are an active sleeper like myself and not a big fan of mummy bags, give this one a try.