The process of getting rid of bed bugs can take anywhere from a few days to a couple of weeks, depending on the extent of the infestation. In many cases, multiple treatments are needed to ensure complete eradication, as bed bugs can hide in hard-to-reach areas and eggs may hatch after the first round of treatment. luggage, clothing, second-hand furniture, or even pets. They are excellent at traveling between rooms, especially in apartment buildings or hotels. Once inside, they typically hide in cracks, crevices, and furniture near sleeping areas.