There are a few differences between bed bugs and bat bugs. The first thing you want to do if you have a infestation is to have the bugs professionally identified because bed bugs and bat bugs look a lot a like. However, there are a few more things that can tell you which type of bug you have. For example, bat bugs like to infest your upper walls, ceiling junctions, and ceilings. Also, these bugs don't bite as much as a bed bug. The treatment for bed and bat bugs can be similar except for one aspect. With bat bugs, you are always going to have bat bugs as long as you have bats in your house or attic. Get rid of the bats and then have a professional come in and spray. Bat bugs typically go away faster than bed bugs.