Bed bug (likely nymph)

Human sleeping areas, especially mattress seams, bed frames, furniture cracks, and nearby wall or floor crevices.

Feeds exclusively on blood, primarily from humans but occasionally other warm-blooded animals. It usually feeds at night and may become reddish after a meal.

Wingless, flattened insects that hide in cracks during daylight and emerge at night. Females lay tiny eggs in protected crevices; infestations spread mainly through luggage, clothing, furniture, and bedding.

Bites can cause itchy welts, allergic reactions, and sleep disruption, but bed bugs are not known to transmit diseases routinely. They provide no meaningful household or ecosystem benefit.