I have a substantial REI dividend (more than $200) and there is a current 20% of sale. Of course, I MUST spend the dividend at REI, so l am looking for something useful that I do not have. My thoughts lit on a sleeping bag in the 0 to 10 D (degree) range. I expect my most severe camping to be in late fall in Maine and I sleep very cold, so something in this range should do the trick. Of course, I am looking for the best combination of weight, warmth, and cost.
To me the likely candidates are the $389 REI Magma (EN rated at 7D, weight 44 oz.) and the vastly more expensive $535 Mountain Hardwear Phantom +0 (0D NOT EN rated with just 2 ½ oz. more of the same 800 fill down and weighing 46 oz). I am suspicious of the Mountain Hardwear actual performance and I don’t like the cost difference for 7D. By comparison, the $479 Marmot Couloir 0 has an EN rating of -2D with 8 ½ oz more of the 800 fill than the REI bag and it weighs a hefty 55oz.
First question: Should I be suspicious of the Mountain Hardwear rating? Implied in this is the amount of 800 fill down, which all use, and the rated warmth difference: REI has 25.5 oz of fill for a 7D rating; Marmot has 34.0 oz for a -2D; and Mountain Hardwear has 28 oz for a 0D. The difference between Mountain Hardwear fill and REI is small for a 7D jump and the difference between Mountain Hardwear and Marmot is substantial for a 2D difference.
At least as important a question is: Does anyone have information about REI bags, preferably the Magma, but their bags in general and/or thoughts about other bags available from REI (remember: it’s gotta come from REI) that might have a good balance of warmth and weight?
Thanks for reading through all of this and thanks for any ideas.