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I need a bit of advice /out/.
I've recently got into winter camping but i have cheaped out on my sleeping mat so my last trip wasn't exactly comfy.
I'm a broke ass student and i would like your advice on the most economical way to stay warm in -15C/5F degree weather.
Suggestions for an affordable (self inflating) sleeping mat would be much appreciated but DIY/jerry rigged solutions are also more than welcome.
Also general sleeping mat thread.