We're doing a winter CAMPOUT here in oregon in a couple weeks. I expect the temperature to be low 20's. I am wanting to test my Kifaru woobie I just received a couple weeks ago. Here's my Setup. Ti-vek ground cloth, neo air xtherm, Ti-goat bivy, Kifaru woobie rated at 40 degrees,add a sea to summit reactor plus, supposed to add 20 degrees to setup. Wear under armor baselayer. If I get cold my backup plan is add under armor mid layer and Sitka kelvin jacket. If really cold I'll have a couple packs of hand Warner's to place as needed. Has anyone used the woobie as a stand alone quilt?when I bought this my plan was to use it for summer trips. But I thought I'd test it on our winter back pack trip. Any thoughts, I don't mind freezing for one night, but was hoping it really works and hoping I'd stay warm with just the woobie and sea to submit and base layer.