Have you ever awoke in the middle of the night, itching frantically, only to see a trail of tiny red welts marching across your arm? If so, you’ve most likely had to deal with bed bugs, which are unwelcome guests. These nocturnal, flat-bodied insects consume human blood and can cause itchy, unpleasant bites. While bed bugs are not known to spread diseases, they can disrupt sleep and create mental anguish.