For those of us who worry about our sleep, every morning is a scramble of mental maths as we turn to our bedside clock and calculate whether or not we’ve had “enough”.

“Avoid screens before bed” is one of the most common pieces of sleep advice. But what if the real problem isn’t screen time—it’s the way we use social media at night? Sleep deprivation ...

(CNN) — Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. When jolted awake by the blare of an alarm clock, it’s tempting ...