Meditation app maker Calm is no stranger to helping people sleep—users have played its bedtime stories more than 1 billion times in the decade they’ve been available. But with the new Calm Sleep app, ...

Holiday blues and stress can lead to sleepless nights, but our expert tips will help you sleep soundly through the festive season.

When Katie Krimitsos lies awake watching sleepless hours tick by, it's almost always because her mind is wrestling with a mental checklist of things she has to do. In high school, that was made up of ...