Bed Bugs
The godfather of nighttime creepy crawlers, these pests are reddish brown in color and grow to about a quarter-inch in length. Warning signs include small bumps on your arms and legs and traces of the insect in the folds of your mattress. According to Alex Mahon, director of environmental health with the Florida Department of Health, bedbugs may not pose any serious health threats, but they can quickly become a serious nuisance.