I have have had this bag for several years camped in some pretty gnarly terrain. You cant go wrong with this bag and a good sleeping pad. Remember you get what you pay for and when you spend $$$ your paying for lightweight. A couple compression sacks will help shrinking everything so you can pack more heavy stuff into your pack.
http://www.rei.com/product/847520/sierra-designs-zissou-12-sleeping-bag
http://www.rei.com/c/sleeping-pads-cots-and-hammocks?ir=category%3Asleeping-pads-cots-and-hammocks&sort=sc_revenue&r=category%3Acamping-and-hiking%7Csleeping-pads-cots-and-hammocks%3BSleeping-Pad-Type%3AAir%20pad&page=1
