To prospectively determine the burden of hypoglycemia (minutes spent below 70 mg/dl per day, measured by continuous glucose monitor (CGM)) among residents of long term care facilities (LTC) with a diagnosis of type 1 or type 2 diabetes including key clinical subgroups (living in skilled nursing facility (SNF) or nursing home (NH), on different hypoglycemic medications). This aim will be achieved by recruiting 300 residents with diabetes in 4 LTC facilities. All participants will undergo masked CGM for 10 days.