http://www.mec.ca/AST/ShopMEC/HikingCamping/SleepingBags/DownMummyBags/PRD~5025-628/mec-aquila-wide-sleeping-bag-7c.jsp
I have thye older version and have taken it down to -20C with comfort. It's big enough to allow insulation to be worn, and so used I have been down to -30. Very good value.
