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 About Sleep Studies, Insurance, and More

David Kuhlmann, MD, is medical director of sleep medicine at Bothwell Regional Health Center in Sedalia, Mo., and is certified in sleep medicine and neurology

Expert Advice on How to Sleep Better Tonight

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

The Science Behind Snoring

This bothersome habit can lead to sleep apnea

When to Consult a Sleep Doctor

Guidelines for insomnia, sleep apnea, and other disorders

Dr. David Rapoport

Associate professor of medicine at the New York University School of Medicine

4 Strategies for Coping at Work

How to deal with a sleep disorder on the job

Real Patients' Opinions of CPAP Therapy

What it's really like to sleep with a breathing machine every night

Understanding Dependence and Addiction

Getting hooked on sleep meds is rare, but there are still things you should know