Take some millet out if it's too high or hard!
I have used these pillows for about five years.  This is the second Rejuvenation Pillow I have owned.  Sadly, I left my first one in a hotel and had to order another one.  Before buying my first Rejuvenation, I tried synthetics and even put a feather pillow in an anti-allergen casing (I am sensitive to down.)  It has helped my neck issues a lot.  I have also bought these for family.  We all love them.  I am writing my review to let people know that if they find this pillow too hard or too high, simply unzip the millet side and take out a few cups of millet.  I have done this with both of mine and so did my daughter.  It is a firm pillow and cradles the neck and head.  The wool adds softness and keeps you cool and does not attract dust mites.  I highly recommend this pillow.
Rating: 5 stars