Jason Murrill wrote a review of Marmot Never Summer MemBrain Sleeping Bag: 0 Degree Down on January 5, 2014
Familiarity: I've used it several times
I caught this bag on a sale at Backcountry, and I have used this product more than several times, but I wouldn't say I've put it through the wringer. This bag definitely keeps you toasty and warm. Put on a light baselayer, knit cap, and some wool socks, and this bag I believe would definitely keeps you warm at the rated temperature. I've used down into the 30s, and it kept me warm. I am very happy with my buy, and I think anyone that got this bag would be too.