Astonishing.
I do not understand why any person who travels doesn't ALWAYS take their own pillows. Even on short stays when we only have carry on luggage we ALWAYS take our own very good pillows. They're 100% Siberian goose down which we use in pack bags ie dispel all air - they take little space.
Have you any idea how many people have dribbled on those pillows they give you?!
TAKE YOUR OWN WITH YOU!
You know it makes sense.