Not so fun bed mites fact: your bed pillow might be home to 40k microscopic bed mites that come out at night to feast on your skin residues. (chapter 23, A Short History of Nearly Everything). Let me know if you want another!
UV light and and a vacuum will reduce the population. A water bed will do too plus take you back to the 80's
Bed vacuums are a pretty common thing here in Japan.