Kelly G.wrote a review of Mountain Hardwear Mountain Goat Adjustable Sleeping Bag: 20 Degree Thermal Q on July 24, 2016
Familiarity: I've put it through the wringer
Very comfy and warm to about 30 degrees (not 20 unless air spaces are stuffed with extra clothes), and plenty of wiggle room (I'm female, 5'7" 150 lbs). Love the little zipper pocket at the neck for small items, and the double-2-way zipper for ventilation. Does not open all the way, but I still used it as an open quilt on warmer nights. Synthetic doesn't pack as small as down, but for hiking in all weather conditions, synthetic is the safest bet. This bag came with its own compression stuff sack, which is probably the BEST I've ever had. It weights next to nothing, it's strong as nails (and I abused it every day, getting the bag in and compressed) and waterproof! Experiment: I put the whole deal in a sink full of water for 20 minutes and my bag was bone dry! It weighs in a bit heavy for ultra light backpacking, but for all around durability and comfort, the extra weight and bulk is worth it.