Restless legs syndrome (RLS)

Restless legs syndrome (RLS and also known as Willis-Ekbom disease) is a disorder that's characterized by annoying and sometimes painful sensations in the legs that are brought about by sitting or lying down. These sensations can include creeping, tingling, burning, tugging, or aching in the calves, thighs, or feet. Getting up and moving around is usually the only way to find some relief. Also, because the symptoms typically occur at night, the disorder can interfere with falling and staying asleep, leading to exhaustion and daytime drowsiness.