Ive been through a few pillows the last two seasons.
I started with a large therm-a-rest foam pillow. It’s just ~1” cubes of left over memory foam stuffed into a pillow case. moderately comfortable. lightweight, but very bulky.
switched to a Nemo fillo. Packs much better than the therm-a-rest. Memory foam liner is a nice touch but they inflatable part felt very balloon-ish to me.
next up was a S2S Aeros. packs down smaller than a baseball. Larger and more comfortable than the Nemo, but still not fond of inflatables.
on a whim, I ordered a MyPillow travel pillow. It came with a shit case so I put it in one of the empty therm-a-rest cases. Same product as the therm-a-rest pillow, but worse.
for now i think I’ll stick with the original therm-a-rest when I can fit it, and the S2S when size is an issue. I may try the S2S down aeros next.