Pillowcases Benefits Jun 4, 2021 2:29:53 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by troymeathers on Jun 4, 2021 2:29:53 GMT A good pillow case should be waterproof because, it provides a barrier for moisture migration to the pillow, so the pillow will not get discoloured or stained because of sweat, saliva.