Soldato
Actually the pillows, not the pillow cases, are easy to get in the UK. I've got one in the top of my wardrobe from when I had issues with my back a couple of years ago and my physio suggested I get one for extra support.
To the OP. Go out to places like Dunelm Mills, John Lewis, Ikea etc etc and feel pillows. It's no good saying you want a firm pillow stuffed with monkey gizzards ... it's likely to feel different from manufacturer to manufacturer ... go out and give them a squeeze (pretend they are something else).
