Gram-positive bacteria cause tremendous problems and are the focus of many eradication efforts,

Gram-negative bacteria have been developing dangerous resistance and are therefore classified by the CDC as a more serious threat.

By the fourth week, all areas of your sleeping spaces have almost 12 million CFUs. We also compared amounts of bacteria on bedding with other items we typically envision as “dirty.” As you can see in the chart, your bed is a pretty germy place.