The best way to determine if you have bedbugs (besides the obvious bite marks) is to start checking your mattresses for small dark bedbug spots. Sometimes you'll even see the bedbugs themselves, hiding in the creases and folds of your mattress or the tight corners and cracks in your bedframe.

Ortho Home Defense Dual Action Bed Bug Killer not only kills bedbugs and their eggs - it also provides up to two weeks of additional protection after application.