Bin with the Redwood got along 2 months. After that, the sleeping bag is torn, (so long will the seams not) At nights I have often gefroren.Tagsüber it was 25C! Luckily we were able from time to time in caravan or stay in hostels for "Inside" He is geeignet.Aber on the mountain in freezing temperatures, I would definitely a more expensive and even a sleeping bag recommend the abkann more sub-zero temperatures. So be careful when camping, might otherwise be cool night and it's really corrosive if you can not sleep because of the cold;. (