The answer to 'what attracts bed bug' is that bed bugs are attracted to warmth, carbon dioxide, and the scent of humans. Bed bugs feed on human blood and are typically found in areas where people sleep, such as beds, mattresses, box springs, and bedding. They are also attracted to furniture, cracks, and crevices where they can hide.
Bed bugs can be difficult to detect, as they are small and often hide in hard-to-reach areas. Common signs of a bed bug infestation include itchy bites, blood stains on bedding, and the presence of small, brownish insects. If you suspect you have a bed bug problem, it's important to take action quickly to prevent the infestation from spreading.