Bed bugs are small, reddish-brown parasitic insects that feed on human blood. They are primarily found in living quarters but have also been discovered in offices, movie theaters, hotels and retail dressing rooms. Virtually nonexistent since the 1950's bed bugs have re-emerged in the past decade as a more common household pest. Evidence to look for to determine if you have bed bugs are live or dead bed bugs, fecal staining in and around beds/bedding or sofas, or blood staining found on sheets and/or mattresses. Bed bugs are generally nocturnal insects that emerge from their harborage when they detect Carbon Dioxide and warmth leaving the body of the person they are feeding on (host). They tend to hide in small cracks and crevices in and around the areas where their host sleeps or spends ample time.