A virologist and a surgeon have given us a good reason to change pillows every two years thanks to one disgusting fact about what happens to them over time.
When we use something for long enough, it can be easy to get into such a routine with it that we take it for granted. And since the only time we tend to think about our pillows are when they get uncomfortably warm in the summer or we're worried they have bed bugs, this is especially true for them.
That's why it's not so impossible to believe that one man's pillows laid unwashed for five years and why some folks have devised a test to determine whether a pillow has hit its invisible expiration date.
But according to multiple experts, it seems that the best way to determine when you should replace your pillow is to keep track of how long you've had it. And motivating ourselves to do that is as easy as listening to them explain why we should bother.