Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep . Summary Wearing socks to bed could help improve sleep by lowering core body temperature, according to Cleveland Clinic specialists. The process of warming feet opens blood vessels, increasing heat loss through skin and cooling the body. Men wearing socks fell asleep nearly eight minutes faster and slept 32 minutes longer, a small 2018 study found. Sleep experts recommend