If you want to ignore weight, the Sierra Designs DriDown pillow is my choice. 5.8 oz total. But you can remove the interior pillow, and stuff it with your down puffy, or whatever clothing you want. That brings the weight to 2.7 oz. I also use it as a stuff sack for my EMS down puffy (which can actually compress really small into it's own pocket, but takes a bit of effort to do so.)