When you buy through links on this page, HuffPost may earn a commission that helps support our journalism. Every product is handpicked by the HuffPost Shopping team, and prices and availability are subject to change. "I’m shocked, happy and disgusted at all the gunk this little vacuum got out of my mattress!" I’m sorry, but your bed is gross. According to Manal Mohammed , a medical microbiologist and senior lecturer at London’s University of Westminster, t he average mattress “can have