A multinational survey of almost 2,000 people with gastroesophageal reflux disease (GERD) found that approximately half have trouble sleeping, which affects their work productivity and leisure activities. The results were presented today by UCLA researchers at Digestive Disease Week® (DDW®) in Chicago, IL. The survey of GERD sufferers in Europe and the U.S. showed GERD reduced work productivity by 15 percent and impaired leisure activities by 22 percent in people with GERD-related sleep disturbance.Approximately 61 million patients in the United States are struggling to control the symptoms of GERD.2 About 75 to 80 percent of GERD patients say their symptoms occur at night.