Itchy, red, raised bumps on exposed skin
Bites often appear in a line or cluster
New bites noticed after sleeping
Small spots of blood on sheets or pillowcases
Dark fecal spots on mattress seams or bedding
Tiny pale eggs, shed skins, or live bugs near the bed
Bites on arms, legs, neck, face, or hands
Burning or stinging sensation after waking
Swelling or hives around the bite area
Bites that keep appearing over several nights
No clear pattern if you are sensitive and react strongly
Similar symptoms in other people sleeping in the same bed