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/Out/ists, how do I make my sleeping bag warmer? I have one that is rated for 2°C, and would like to use it during the winter, when it could possibly be down to -22°C. Of course, I'll be in a tent, and have good insulation from the ground. I'll also be using a sleeping bag liner, but that doesn't help much.
So how can I make my sleeping bag much warmer? I was thinking of sewing another liner made of fleece and put it inside my sleeping bag, Will that be enough? What do you suggest, anons?