Bed bugs are parasitic insects that resemble flat ticks. Adult Bed bugs may grow to 1/4”. They hide in the corners of rooms, behind walls, in beds and furnishings. Bed bugs come out at night and feed on human blood. While feeding, they inject a tiny amount of their saliva into the skin to keep the blood from coagulating. The females must feed 5 times before laying up to 5 eggs a day as many as 300 in a lifetime. The eggs hatch every 8-10 days.