“Sleep has a huge impact on our health. It helps our brains function, protects against heart disease and supports our immune system. And without it we would die. 

Although for something so important, we aren’t formally taught how to do it right, says Rebecca Robbins, a sleep scientist at the Brigham and Women’s Hospital and an assistant professor of medicine at Harvard Medical School. “In America, you learn about nutrition or sex ed in school, but never about sleep.” 

It may be why only a third of Americans get the recommended amount of sleep each night, according to the U.S. Centers for Disease Control and Prevention.”
https://www.npr.org/2024/01/09/1196978496/debunking-popular-myths-about-sleep