Can any of you sewing people please tell me how hard this stuff might be to sew? --"Shell material: 20d 1.1oz downproof nylon".From the specs. Thinking of chopping it into a quilt type shape tapering the bottom. Maybe even chopping the length. I can get it for about 60 quid so it seems a bargain. https://drop.com/buy/massdrop-pine-down-blanket/details#details Ta for any advice you may have.