I bought a shredded memory foam pillow from amazon in September of 2016. In November of 2016 I also got one for my wife. We still use the same pillows. They are adjustable (you can remove some of the foam if you want them to be thinner). They can be washed/dried and it kinda rejuvenates them (I've only done this a time or two). It's my favorite pillow I've ever used.
The bad news: the exact pillow isn't available anymore, if it was I'd tell you to get it for sure. This new pillow from the same company says it's 100% bamboo--even the filling. So I'm not sure it's the same thing. The link I just sent has the price listed at $52, but they have a 40% off coupon right now. Personally, I'd try to find a shredded memory foam pillow that is adjustable from some other manufacturer. It should probably be around 50 bucks or so for a queen size one.
> Xtreme Comforts Pillows for Sleeping
I think its this: https://xtremecomforts.com/shop/all-products/shredded-memory-foam-pillow-with-bamboo-cover-adjustable-thickness/
Although the price seems high! I got the king size for $35 in 2021.