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Rave About Your Rack Please do not post retail SPAM.

Topic Date User

Sleeping Bags, High attitude 22-Jan-2013 At 4:34:38 PM Sabu

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Look at the link below as an example (I actually own this bag and have spent many happy nights on snow here in Aus, things are likely different at 5000m though). The temp ratings are quite broad -3 comfort, -10 limit and -28 extreme as measured by the 13537 rating. So that can serve as a guide, at -10 you're probably not going to have the best sleep whereas at -3 you'll be snug as a bug (depending on the rest of your gear). You can then give yourself a little leeway depending on whether you're a hot or cold sleeper. If you're a cold sleeper for example, you might want the model up which has a comfort of -7 instead. As others have said, mattresses count for a lot and remember you can also use a liner to give the bag a little extra warmth.

http://www.vango.co.uk/expedition/viper-750.html

There are heaps of brands around and things can get pricey, so do your homework, read reviews and work out which one fits your needs for the best price. Don't skimp on quality either, you won't have a good time if you're uncomfortable.