Hi Monte,
I would probably hold off before considering any new pillows mainly because a new mattress can change the height between your head and neck and the mattress and it’s probably best to see how your old pillows are working for head and neck alignment before you consider something new.
Pillows are a far more personal sleeping item and subjective considerations play a much bigger role in the “best” version for each person. Some of my thoughts are in the “pillow thread” here.
I should add as an update to my post there that I still haven’t had a real chance to test out the biogreen pillow for any length of time because my DH still insists on keeping it for herself and leaves me with the latex pillow (which I do like) … and when she likes something, there’s just no convincing her to give it up :). I should be thankful I guess.
If I can ever convince her to “lend” it to me for a while … I’ll add my thoughts to the thread.
Phoenix