If you can sew, why not just make your own pillowcases with the twin set sheets? I have ordered twin sets of the queen bedding to make pillowcases. To make a pillowcase, just use one of your current pillowcases, cut the flat sheet to size and sew straight! It is VERY easy!!! And MUCH cheaper too!

BTW, Bed bath and beyond carries these sheets, so if you really don't want to spend $30 for pillowcases, you can get them for $27.99 minus whatever discounts you can get.