The cotton pillowcase is infused with silver ions, which basically S&D (seek and destroy, for those of you not in the military-lingo know) bacteria before they have a chance to multiply and render your pillowcase a three-ring circus of vileness.
Habitat destruction is the process in which natural habitat is rendered functionally unable to support the species present. In this process, the organisms that previously used the site are displaced or destroyed, reducing biodiversity.
Unfortunately, there are some causes of habitat destruction that are out of our control. Efforts to mitigate destruction can be attempted by planting trees and plants native to a specific area where there has been destruction.