Originally Posted by maztrain
I have a HG 20 degree UQ&TQ that I recently did some testing at 0 degree according to my Casio Pathfinder watch and the weather prediction...I used no tarp but was under my back porch hanging from my Turtle-Dog Stand. I also used a Frogg Togg Poncho as an over cover...and also a small fleece blanket that I partially covered my UQ with...and as for myself...I was wearing top and bottom typical longjohns, wool socks and a beanie and that was it. I had no problems ...slept through the night...
Before this test I tested my 20 degree system at 20 degrees with just boxers, a wife beater(tank top under shirt), no beanie no socks just the poncho over cover. And I was fine...however I am a very warm sleeper(my wife loves me for that)and some people are the complete opposite (like my wife) so what works for me may not work for you. I hope this helps out and if you can test your gear at home that is the best ....cause if you get cold you can figure out why and fix it and if not just go back inside where its warm!!! And as for the tarp with doors....IMO..YES... a tarp with doors will help keep out the wind that can rob your UQ of its warmth...However a UQP can help with that as well.... Good luck and Hang On!!!!!
Thanks for adding your experience.
I wanted to get a UQ that I could use all year long and any trips below 20° would only make up about 5% of my yearly total. So I wouldn't mind carrying a tad bit extra gear for that 5%.