Two years ago I bit the bullet and bought a WM Versalite Super. Now I can't imagine sleeping in anything else. It's not just the weight savings that you are buying, but the thoughtful quality construction. (this is not a plug for WM - there are lots of great, well made bags - I just happened to buy from WM). My previous bag was a very nice Northface down. It kept me warm enough and was comfortable, but nothing like the Versalite. I am a toss and turn sleeper and the Versalite floats over me so I can turn inside the bag - which keeps the top on top where most of the down is. And, of course, there is the weight savings because, lets face it, your sleeping bag spends most of it's time in your pack. In my case I dropped a pound and a half out of my pack when I switched. It was pricey (I think I got it on sale for $340), but I'll have it for years, and I now look forward to climbing into it every time I go out.

Rionada
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i really don't think that applies to me.