Hi Dreamer77,
The goal of a suitable pillow is to keep your head and neck in good alignment in all your sleeping positions and body type and shape, sleeping style and positions, and the firmness of a mattress can all have a significant effect on which pillow is “best” for any particular person. In other words … a pillow that works well for one person on a specific mattress may not be suitable at all for someone else or on a different mattress.
In terms of “comfort” and the “feel” and response of different types of materials … pillows are an even more personal choice where individual preferences and “feel” play an even bigger role than with a mattress but in addition to Jeff’s suggestions there is also more information in the pillow topic here and the posts it links to that may be helpful as well.
Phoenix