The amount of sleep a person needs depends on many factors, including age.
Sleep stages are divided into non-rapid eye movement (non-REM) and rapid eye movement (REM).
Dreams can be entertaining, disturbing, or downright bizarre. We all dream -- even if we don't remember it the next day. But why do we dream? And what do dreams mean, anyway?
This interactive assessment will help you assess your sleep habits and sleep quality, and provide tips for improving your night's rest.
Learn about your sleep patterns and habits by keeping a daily sleep diary. It may be key to helping you and your health care provider diagnose and treat a sleep disorder.