I have a question - probably clear as mud but you know how it is some days! In process of making one for my mom who is scheduled for surgery Dec. 11. I understand about folding the fabric in 10-1/2inches on each side and having a 1-1/2 inch space on each end. but when it says to sew the sides ???? are we talking the sides that are folded in or do we sew the top and bottom. thanks!