I used this for a 10 day sheep hunt in Yukon at the start of August 2021. It was unseasonably warm, with night temperatures not going below freezing. It was too warm even without clothing. I like that it compacts well, and I like the extra large size. Obviously the down side is that the extra size adds some weight, but I think if temperatures do not go below freezing go with the lighter sleeping bag and you will be plenty warm. The lighter fill bag is at least a pound lighter. For the price it is exceptional value.