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No idea,I do know I weighed a lot less:sick:

My original hammock was a wool fadge unstiched,tied taut,under a fly,zipped the bag around the whole shebang.So me in the hammock,in the bag,balaclava on the swede.

You will freeze even with a good bag without an insulation mat.The down compresses and has no loft= no warmth on the back(I use an FD scorpion 850)you will get to sleep but the cold will wake you.