Deuter Neosphere -10 down sleeping bag - REVIEW
While the debate over down versus synthetic is largely personal preference, I would like to state mine up front. Down. Hands, uh,… down. For a bag with the same warmth, down is more compact, lighter and provides more loft than synthetic sleeping bags. On the other hand, synthetic will keep you drier when the bag gets wet which is a major point when winter camping or if you get your tent flooded out (trust me it happens). A good all-round sleeping bag in my opinion is a -10°C down bag as it works well in the alpine for summer camping and will also serve you well on backcountry skiing hut trips. Some would say -10°c is over kill but I like to have some additional warmth in case the hut is not heated, the stove goes out or worse case scenario—you don't find the hut. At -10°C you could spend a night out and remain relatively comfortable on all but the coldest winter nights and even then it would get you through until dawn breaks.
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