I got a HH Asym Expedition a few weeks ago. I will be using it on my next backpacking trip in a few weeks. I thought it would be a good idea to sleep in it one night in my backyard. It has the standard tarp. I used a 1.5 inch Thermarest pad an LL Bean Synthetic Sleeping bag (rating unknown I am guessing 30-40 deg). I slept in my hiking long underwear, sacred socks, and a short sleeved hiking/exercise shirt (the ones that wick your sweat away). When I got into my setup it was about 55 degrees, I was very warm and toasty, almost too warm, no real cold spots even at the shoulders, the pad didn't slip around too much. I had a bag liner with me but didn't use it (I will on the trail if for no other reason than hiker funk). I used my hiking jacket in my stuff sack as a pillow but found I didn't really need it. After I got settled I had to readjust one of the guy lines for the tarp cuz I tied a poor hitch and was getting alot of flap with the wind. 30 minutes later we got some rain, not problems there. Overnight it got down to about 40. No real cold spots over night as long as I had my bag zipped up all the way. My back was a little damp when I got up around 6 but I don't know what to do about that. I think I will bring a hat for my head if it is any cooler when we go (Harper's Ferry area April 10). My nose got a bit chilly, I have a neoprene facemask that I though might help. Overall a good first run, I was pleased with the results. i had to stay on my back which isn't a problem when I am hiking. Any comments of what to do better with the set up I have? Is my facemask idea a good one? I am really looking forward to this upcoming hike and trying it out in the woods!