Why are sleep myths so common today? Why do they exist in the first place? Why does everyone have an opinion or some advice about how you can improve your sleep? It may be in part due to there are so many sleep problems and sleep issues are so common. One in three people in the U.S. suffer with some type of sleep condition – that’s 50-70 million people! If you have a hard time sleeping, you are willing to do just about anything to get help – and will believe almost anything.