What pillow is good for neck and shoulder aches?

What would be a good pillow to buy to reduce neck pains and shoulder pains? I’d really like a memory foam one, but am not sure what brand to even buy. The sleep number are like 0, whereas on overstock.com I found some other brands for cheaper.
Serta looked really comfy.
Any knowledge about this subject? opinions or customer reviews?
Also, would I need any special accessories? I have a large pillowcase that I hope will work fine.


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