Our camper-designers eco-designed this sleeping bag for sleeping comfortably when camping at temperatures close to 20°C. 20°C. Our motivation? To offer a sleeping bag with a full zip for easy opening. It can also be converted into a duvet. We display on all our sleeping bags the comfort temperatures tested by an independent laboratory (AITEX) according to European standard ISO 23537-1 of 21/01/2017. The comfort temperature rating is the lower limit at which the user in relaxed posture is generally in thermal equilibrium and feels neither too cold nor too hot (for a standard woman in normal conditions of use).