How your pillow is the perfect breeding ground for gruesome array  of pests and diseases
http://www.dailymail.co.uk/health/article-2006760/Pillows-breeding-grounds-pests-diseases.html#
http://www.dailymail.co.uk/health/article-2006760/Pillows-breeding-grounds-pests-diseases.html#
"Sleeping comfortably? A study has found that as much as a third of a  pillow could be made up of bugs, dead skin, dust mites and their faeces.   It is not a thought conducive to a good night's sleep: Up to a third of the  weight of your pillow could be made up of bugs, dead skin, dust mites and their  faeces."
 
