Many thanks to Riley Blake Designs for this easy to follow method for making a beautiful pillowcase with fully enclosed seams and a little bit of detail to make them feel just a little extra!
This method requires the following fabric:
68.5cm of width of fabric (110cm) yardage for the main part
23cm of WOF for cuff
5-6cm of WOF for trim (you could also use a lace, ribbon or whatever you fancy for the trim
Download the instructions here