The Mountainlife Basecamp 250 sleeping bag has an extreme temperature of 2C & a comfort temperature of 5 – 15C. The Mountainlife sleeping bag is a 1 – 2 season sleeping bag & weighs just 1.2kg. The sleeping bag has a hollow fibre filling & is available in turquoise. Extreme temperature The extreme rating is a survival only rating for a standard adult woman. This is an extreme survival rating only & it is not advisable to rely on this rating for general use. Comfort temperature The "comfort temperature" is the minimum temperature that a sleeping bag is designed for. Of course this is just an approximation as people tolerate temperature differently. 1/2 Season sleeping bag This is suitable for the sprint summer months with an extreme temperate of 0 degrees. Measurements Length 220cm Head: 80cm Foot: 55cm