BUFFALO, N.Y. ­­— Individuals diagnosed with obstructive sleep apnea, which causes the upper airway to become blocked during sleep, often rely on a continuous positive airway pressure (CPAP) machine ...

If you regularly have a hard time getting restful sleep, you may need a sleep study. Also called polysomnography, a sleep study is a test that's used to diagnose sleep disorders. The good news? A ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. A restless night may leave you feeling tired ...

This story was featured in The Must Read, a newsletter in which our editors recommend one can’t-miss story every weekday. Sign up here to get it in your inbox. For most of my adult life, I’ve been ...