Restless foot syndrome is a condition that is characterized by an uncontrollable urge to move legs during bedtime, according to Mayo Clinic. Restless foot syndrome is considered a sleep disorder because it interferes with sleep, states WebMD.
The exact cause of restless foot syndrome is unknown, but scientists believe it may be caused by an imbalance of the brain chemical dopamine, states Mayo Clinic. Other contributing factors include chronic diseases, such as diabetes, Parkinson’s disease and kidney failure, notes WebMD. Medications used to treat restless foot syndrome include iron supplements, Sinemet, opioids and drugs to increase dopamine in the brain, such as rotigotine, ropiniole and pramipexole, according to MedicineNet.com.