Stayed overnight somewhere recently and they had these 'box pillows' - shaped like a flat box rather than normal pillow shaped. They were awesomely comfortable. Have bought some from Amazon and they are normal pillow size but also 8cm deep, so 45 x 76 x 8cm. When you cram them into a normal pillowcase you might as well be sleeping on a football. Dunelm do cotton box cases but the reviews say they're not deep enough. Any ideas? At this rate I'm going to have to make my own!