there are a number of pillow styles and types.
I have seen contour pillows, soft pillows, hard pillows, beads pillows, small pillows, even a side sleeper's pillow.
I even saw an "ostrich pillow" and a pillow shaped like a "j".
Some pillows have not been comfortable to me.
The contour pillow flattens after two years.
I like the beads filled pillows.[mellot beads[sp?]
When I was a child, we used to take a feather pillow apart with all the feathers flying around the room.