“Warm bag-light on the wallet”

“I will be using this bag for cold weather camping, typically sleeping in the back of my truck. I tried it out on a cold night here (40s) and it was way too warm, had to keep it open most of the night - which is what I was hoping for. I have a bag I use that's been fine down to 30s, but am spending more time where it can be below 20, so needed to get a better bag. One thing that is nice is that though it leans toward a mummy style bag, it has more room in the knees to shoulders area, making it easy to have a few extra clothes, or a water bottle in the bag, and still be comfortable (I hate really cold clothes or water in the morning). Great value - zipper seems fine to me and I am generally picky about these kinds of things.”