Dust mites, not to be confused with bed bugs, usually exist in numbers between hundreds-of-thousands and millions throughout the home. They like soft furnishings; carpets, rugs, furniture coverings, beds and linen. Between their waste matter and their mortal remains (exoskeletal fragments), their greatest risk to humans comes in the form of Allergies.
You could have tens-of-thousands of these little blighters in your bed. Fortunately, they feed only on dead skin and hair (which makes up over 90% of household dust) but not upon blood (unlike bed bugs), and maintaining a clean house and regularly washing soft furnishings will reduce their numbers.
Chat with our AI personalities