Your Pillowcase
When you finally have the chance to lay down at night, the last thing you want to worry about is how many germs are living on your pillowcase. However, if you aren’t cleaning it at least once a week, then you can guarantee that it’s anything but clean.
According to 2016 research conducted by Amerisleep, a one-week-old pillowcase is teeming with an average of 3 million colony-forming units of bacteria per square inch (CFU/sq. in.). (For reference, that’s 17,442 times more bacteria than what you’d find on your toilet seat.) Leave your pillowcase unwashed for three weeks, and you could be dealing with as many as 8.51 million CFU/sq. in.
