Bed bugs will thrive in any environment as long as they have a source of food, which is blood. They come out during the night to eat. Since they eat at night they often take shelter in your mattress, since we are in bed at night.
What is the main cause of bed bugs?
Travel is widely recognized as the most common cause of bed bug infestations. Often unbeknownst to the traveler, bed bugs will hitchhike on people, clothing, luggage, or other personal belongings and be accidentally transported to other properties. Bed bugs can easily go unnoticed by humans.
Where do bed bugs come from naturally?
Though it's true bed bugs did walk the earth in the time of the dinosaurs, the natural habitat of the common bed bug (Cimex Lectularius) is now the human home. Bed bugs were known to humans as early as 400 BC, in the days of Ancient Greece. In that time, they have spread to every corner of the inhabited world.