During the winter months the night-time temperature can fall to -5 degrees C or less, so we advise a sleeping bag rated down to at least -5. It is important you keep yourself warm so if you feel the cold more go for a higher comfort rating or add a silk liner. Down sleeping bags offer the best insulation and are lighter than synthetic bags, but that makes them more expensive. There are some very good synthetic sleeping bags on the market which would be an option for this trek should you be wanting to keep the cost to a minimum. Please keep in mind synthetic sleeping bags are heavier than down when considering weight.
