Was out backpacking over the weekend (10-17-20) in the Sawtooths - slept on snow at '8500 feet in my Weastern Mountaineering Alipinlite (which is rated at 20 degrees). Shelter was a Integral Designs Mega Sola (Single wall bivy/tent) and pad was a Thermarest Prolite Apex (R value 3.8) . I put my...