I have to weigh in on this discussion. The great pillow hunt is every bit as serious as the great iron hunt! I could have made a lot of quilts with the money I've wasted on pillows that didn't last, didn't work, etc. etc. A friend told me about latex foam (not memory foam) pillows and I found some in Big Lots for $13 each. My pillow problems are now over. I am a side sleeper and I first bought the medium density and that didn't work so I was fortunate that they had the light density also and it works perfectly. I've had mine for a couple years now. (I was buying pillows about every 6 mos.) The standard size latex foam typically costs around $50 but you can get them on sale when Kohl's and other places run the 1/2 off pillow sales. Walmart has them for $24, but site doesn't say what density they are. Anyway...here's a link.
http://www.walmart.com/ip/Simmons-Be...i_sku=13283704