If you repeatedly wake up with unexplained bug bites on your body this could be a sign that you are experiencing a bed bug problem. Another thing to look for is live bugs matching the description above. Even if it turns out not to be a bed bug, housing should be aware that another bug problem exists within your room. Finally, if you see dark brownish black stains appearing on your linens or mattress this could be a sign of a bed bug infestation.