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I'm thinking of getting a 20 degree down bag to drop some pack weight. This will be my most used sleeping bag for temps of 40 degree and above (I also have a Marmot Merlin 0 degree 3D polarguard bag for colder temps).
1. Sometimes I sweat when sleeping. Not sure what causes this - whether it's biological or a result of equipment, but I often wake up completely soaked. It seems as if the colder it is, the more I sweat. I sleep in polypropolene when the temps are below 40.
Am I inviting an unpleasant nocturnal experience by going with down because of the occasional sweating? Naturally, it's not an isssue with the synthetic bag. The syhthetic will keep me warm when wet.
2. Insulation. Is there much difference between a 20 degree bag filled with 600+ fill power goose down and a 20 degree bag filled with 550 high loft goose down?
bags are only $10 difference in price (550 = $120, 600 = $130) and only 2 oz difference in total carrying weight 600 being the heavier).
My present synthetic 20 degree bag is about eight years old and a pound heavier. I'm thinking it may be time to replace the 'ole geezer (the bag, not OGBO).
The bags I am thinking of (and can be found at Campmor):
Slumberjack Baffin 20 (item no. 68541)
Campmor goose down 20 (item no. 40066)
Thanks in advance for any tips or suggestions.