Anonymous on 05/04/2011

Students moved in in 2007. Bought used mattresses. About 3 months later, began complaining about itchiness and red bumps. When they moved out in 2009, they left their mattresses behind. Mattresses had visible infestation (http://www.bedbuginfo.com/bed-bugs-mattress-pictures.php). Treated carpets with diatomaceous earth and rooms with infested mattresses with bug bombs. Threw out mattresses.