Restless
legs syndrome (RLS) is a sleep disorder in which a person experiences
unpleasant sensations in the legs described as creeping, crawling,
tingling, pulling, or painful. These sensations usually occur in the
calf area but may be felt anywhere from the thigh to the ankle. One or
both legs may be affected; for some people, the sensations are also
felt in the arms. These sensations occur when the person with RLS lies
down or sits for prolonged periods of time, such as at a desk, riding
in a car, or watching a movie. People with RLS describe an irresistible