Bed bugs are small, oval, brownish insects that feed on the blood of animals or humans. Adult bed bugs have flat bodies about the size of an apple seed. After feeding, however, their bodies swell and are a reddish color. Best temperature for bed bugs breeding is 25°C to 35°C, hence they are active in summer season. The temperature of Summer is favorable for breeding of Bed bugs. They are mostly found in wooden beds, chairs and other wooden articles because the temperature of wood hardly changes compare to metal articles. During day time bed bugs hide in tiny cracks and crevices and feed on blood at night. Female bed bugs lay from one to twelve eggs per day, which hatch in 6 to 17 days, and nymphs can immediately begin to feed, requiring a blood meal in order to molt. Bed bugs reach maturity after five molts.