There’s a standard pillowcase here for every bed.
Depending on the range you choose, you can have standard Oxford pillowcases (with a flange or fabric border around the edges) or standard housewife pillowcases (no border). Both types close with a flap at the back. You might want a plain standard pillowcase at the bottom, and an Oxford type on top.
Our expert says: “The most common size in the UK is standard. This measures 50cm x 75cm (20” x 29.5”).”