can't remember the brand it was the only one in store at the time but it's not the one you posted, it's shaped like this (not sure if it's this brand)
Novaform Memory Foam Contour Pillow with CoolGelHD 2-pack
had it for a couple of years. keeps it's shape. i'm a poor sleeper regardless so i can't say it's helped. but it hasn't annoyed me by flattening out like most regular pillows do.