User Review: Sierra Designs Sandman
I have used this bag for five years mostly for snow camping. It is the most comfortable bag I have ever had. I toss and turn quite a bit and with this bag, with pad straps, I never come of my pads. The square top is great for elbows when sleeping on crossed arms and the extra room is good for stashing hot water bottles or other gear that needs to sleep with me to stay warm.
I have the L version and I am 6'0". This leaves plenty of extra space at the foot for boot liners and etc. I have used it in snow caves and tents. It stays warm until about 15-18F in a tent. Wetness or condensation don't affect the warmth. It is a little bulky in the pack and, as the other reviewer said, don't keep it compressed long. This bag works well for 3-season camping as well. The bag is durable, the zipper rarely catches or sticks. The bag looks like new with no tears, frays, or loose stitching.