Bed bugs get their name for their tendency to live and feed in beds. They are also found in suitcases, shoes, or small cracks and crevices close to their food supply. They are most active at night and feed by sucking blood from exposed skin on humans or animals. Bed Bugs do not spread diseases but their bites leave itchy, swollen welts that can be mistaken for a rash of another cause. Infestations can get out of control quickly so it is best to seek professional pest control at the first inkling of bed bugs.