Small, itchy bites on exposed skin, often in lines or clusters
Red, swollen, or irritated skin after sleeping
Tiny blood spots on sheets, pillowcases, or mattresses
Dark fecal spots on bedding, mattress seams, or furniture
Shed skins or empty eggshells near sleeping areas
Live bugs in mattress seams, bed frames, headboards, or nearby furniture
Musty, sweet, or unpleasant odor in heavily infested areas
Bites appearing after sleeping but not necessarily while awake
Signs concentrated around the bed or resting areas
Rust-colored stains on sheets or mattress surfaces