Repeated Oscillatory TMS Therapy of the Epileptogenic Cortical Area in Children With Focal CSWS

Inclusion Criteria: * Patients between the ages of 3 and 21 years old, * An electroclinical diagnosis of focal CSWS as defined by ILAE * SWI of ≥ 85% in sleep on EEG's performed on previous or most recent EEG study. * No change in antiepileptic drugs (AED) in last 2 week, or patients not on any AED Exclusion Criteria: * Presence of metal implants or metallic devices in the head * Any history of drug or alcohol abuse * Presence of cardiac pacemaker * Generalized CSWS All study patients will be enrolled for treatment with TMS to see if this modality of treatment has any effect on SWI on CSWS. Additional exclusions are: * Adults unable to consent * Pregnant women * Prisoners * Wards of the state * Non English speaking subjects and families