A 16-year-old unmade bed turned into an art installation sold for $4.35 million at a Christie’s art auction in London.

Here's why: Leaving the bed unmade, according to scientists who spoke with the BBC, allows the million or so dust mites who share the sack with you every night to die off.

A 16-year-old unmade bed turned into an art installation sold for $4.35 million at a Christie’s art auction in London.