Itchy red bites, often in clusters or lines, especially after sleeping
Small blood stains on sheets, pillowcases, or mattresses
Dark or rusty spots on bedding, mattress seams, or furniture
Shed skins or tiny pale eggs near mattress seams, bed frames, or cracks
Live bugs in mattress seams, box springs, headboards, or nearby furniture
A sweet, musty, or unpleasant odor in heavily infested areas
Bites appearing on exposed skin during sleep
Signs of bugs in nearby cracks, baseboards, curtains, or outlets
Rust-colored smears from crushed bugs on bedding or walls
Increased itching or bite marks after staying in the same bed repeatedly