Most of the vendors rate their 3 season quilts to 20F. Winter quilts are usually rated to 0F to 5F depending on vendor. I ordered a full length underquilt from Leighlo
and am awaiting its arrival (shipped this past Monday) so hopefully it will get here soon.
THe vendors here will definitely ship to Canada, it just costs more to do so. If you didn't see it already, hammockgear.com is having a Father's Day sale and quilts are 10% off.