Thanks for all the input. I have google them before but only saw a couple vague photos of what I want to do. As far as comfort goes I’m only 5’9” not very tall. Last moose hunt I was on I was in a tent and it got down to 16 degrees I was comfortable in my sleeping bag. The problem is I can’t start my tent and warm it up so I can change in the morning. This would also be convenient for 1 or 2 night trips when I camp/fish.