I'm always on the hunt for a pillow that works for the way I sleep, so when I saw that these were adjustable by adding or removing the filling, I had to try it.  I tried it as it came the first night and it was too firm for me, so I removed filling from the inner casing the second night, and it was perfect!  I'm so happy with these pillows!  I really like that they come with their own washable pillow covers and that the pillow themselves are washable.  I highly recommend.