Restless leg syndrome (RLS) is an uncontrollable urge to move legs during the period of rest or inactivity. neurological sensorimotor disorder is often unreported. According to the Journal of Clinical Sleep Medicine in some populations about 25 per cent of adults suffer from it. There are certain features characteristic to this disorder. The International Restless Legs Syndrome Study Group considers four mandatory clinical features to conclude that someone has RLS: An uncontrollable urge to move legs due to unexplained disturbing sensations in the legs. This worsens while one is asleep or during periods of inactivity. These symptoms are relieved by movement.