Bed bug (likely nymph)

Usually hidden in mattress seams, bed frames, upholstered furniture, cracks, and other sheltered indoor locations near sleeping areas.

Feeds primarily on blood, usually from humans, by piercing skin with specialized mouthparts. It does not eat fabric or wood.

Nocturnal and attracted to body heat and carbon dioxide; it hides during daylight and can survive months without feeding. Females lay eggs in protected crevices, producing several nymphal stages.

Bites can cause itchy welts, allergic reactions, and sleep disruption, but bed bugs are not established vectors of human disease. They provide little meaningful ecological benefit indoors.