Pillow Talk

You sleep with it every night, yet for all you know it may be infested. When was the last time you changed your pillow? If you are using a foam pillow, I read (and was told) that they start to break down after two years.
A friend saw a doctor for a sinus infection and he said she might mistake colds for allergy atacks. He also suggested she might want to buy a new pillow as a way to ward off the sore throat and congestion she experiences.
As this sounded remarkably like me (I clog up when I go to bed but sleep well on the couch), I decided I needed a new pillow and went on the Web to find out all I needed to know about buying a pillow but was afraid to ask. The only surprise came from the rationale of a hard vs soft pillow. I always put that down to preference but it turns out it depends if you are a "back sleeper", a "side sleeper" or if you sleep on your stomach (would that make them "tummy sleepers"?)
The site states : "Back sleepers ... will need fairly flat pillows while side sleepers should have something more substantial that can support their head. (...) You'll want a firmer pillow if you sleep on your side and a flatter, softer one if you sleep on your stomach. " The intent is to keep your spine straight while you sleep.
I will keep you posted on the results of my search - hopefully to tell you I am sleeping much better.