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 ...

(CNN) — Do you get enough shut-eye? We know a good night’s sleep is essential for health, yet many do not consistently get enough of it. About 1 in 3 American adults do not regularly get recommended ...

A sleep specialist explains how in-lab and home sleep studies test for sleep apnea. Dr. Ravi Kashyap explains the two main ways doctors test for sleep apnea. An in-lab sleep study can monitor brain ...