It gets worse
A whole legion of nasty, creepy, crawly things feed on this gunk that ends up in your mattress. Things like dust mites, bacteria, and bedbugs.
Dirt, dust, and pollen inevitably find its way into your bed. No matter how clean you are.
It's not just the thought of these creatures crawling around in your bed that can keep you up at night. Dust, pollen, bacteria, dust mite feces, and dirt can cause breathing and skin irritations that prevent you from getting your best night's sleep. No matter how great your mattress is... or was.