Just got back from a long weekend in Rocky Mountain National Park where it dipped down into the low 40s and I was nice and toasty but not overly hot. The zippers dont snag too much and the loops to secure a sleeping pad under it are a nice feature. The only downside is the included compression sack. It feels like its going to split apart at the seams when you're compressing the bag, but you just have to be careful. Overall a very nice bag for the price!