If you have difficulty falling or staying asleep, it can affect all aspects of daily life. Here's what everyone looking for some quality shut-eye needs to know.

Expert Advice for Falling Asleep and Staying Asleep

Lawrence Epstein, MD, is the regional medical director for the Harvard-affiliated Sleep HealthCenters, an instructor at Harvard Medical School, and is past president of the American Academy of Sleep Medicine.

15 Questions With an RLS Expert

Charlene Gamaldo, MD, is an assistant professor of neurology at Johns Hopkins Hospital in Baltimore and assistant director of the Johns Hopkins Sleep Disorders Center