I tested out my new setup last night on the back porch. Neoair xlite on concrete and it got down to 25°. 20° revelation x quilt with 2oz overfill. I was wearing polypro longjohns, wool socks, and a wool/fleece lined hat with ear flaps. My body stayed comfortable but my feet and face were very cold so I came in around 4:00. I know a down balaclava and down booties would help a ton, but is there a cheaper way? Thick fleece balaclava and socks maybe?