Hmm I've even been caught out with a crappy sleeping bag, just staying the night in a woolshed for an orienteering event! Another thing is that if you have a half-decent sleeping bag that works well for summer through to the beginning of winter, investing in a sleeping bag liner is a brilliant idea to make it last better in huts and that in winter, until you get up to the point where you need a better one to withstand temperatures down to -20/-30 degrees etc.... a good $80+ liner, none of those cheap as ones designed for backpacking/staying in hostels! Not quite the price of a truly decent sleeping bag but until you save $600+ for a bag, a liner is a great investment![]()
When caught out and really desperate, wrapping a survival blanket on the outside of the bag = keeps out wind chill/drafts/dew.
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