Expedition sleeping bags
Sleeping bags are meant exactly for what they are named after -.for serious high altitude mountaineering and polar expeditions. Expedition sleeping bags are no nonsense equipment for unimaginable cold that could go as low as -40 degrees. They are used by travelers headed for wintry weather. An appropriate sleeping bag will mean the difference between sleeping soundly and not sleeping at all.
A few quick tips will give you ideas on what to look for when buying a sleeping bag. ~Decide what the lowest temperature is that you are likely to encounter. Choose a bag that will perform to this temperature (and ideally a little below for extra peace of mind). ~Synthetic bags tend to be cheaper and easier to clean than down bags. They also provide reasonable insulation when wet and dry out more quickly than down bags. ~Down bags provide the best warmth to weight ratio, compress smaller and will last longer than synthetic bags. ~A mummy shaped bag will provide the most efficient insulation compared to a rectangular bag which will give more space to move around in (but also to heat up). ~A sleeping bag is no good if you don’t have insulation from the ground; use a suitable mat to get the most from your bag.