I haven't had a chance to wash and actually use any of these pillowcases yet, but I'm already terribly disappointed.  I was so looking forward to some new pillowcases at last!  The ones that are supposed to be light blue are really rather a dark sage.  I would NEVER pick that color.  The ivory isn't too bad, but is also not the shade that was shown.  The white ones may be okay, except that those in one package are very, very wrinkled.  They have obviously been taken out and put back into the package.  The description DID say machine washable, but neglected to mention that that means a cold, delicate cycle.  I cannot do a separate washing just for pillowcases.  I hope they will be usable after washing with other items in a warm wash.