@discographer-- Yes, actually there are. You may have to look around a little bit, or perhaps shop online but you can find it.
Also have you considered an orthopedic pillow with a crevice in the center? Although the pillow is made of the same materials, the center area where the head lies is a bit lower than the rest. So the corners of the pillow fit the arch of the neck and support the neck and the lower area in the center supports the head. This type of orthopedic pillow actually is most effective at maintaining a straight spine during sleep. I highly recommend this type to you.