OBJECTIVES: To increase our understanding of the impact of diabetes-related non-severe hypoglycemic episodes (NSHE’s) on patient functioning and diabetes management. METHODS: A web-based survey of adults with diabetes (US, France, Germany, and UK).  NSHE’s were classified as occurring in the past month, either during the day or during sleep (nocturnal). RESULTS: 6,756 persons with diabetes were surveyed, 2,430 had at least one NSHE in the past month. The mean age was 46.1±14.8 (range 18-90), 1378 (56.7%) were female and average duration of diabetes was 12.8±11.8 years (range 0.08-72.8). 89.2% (n=2,167) reported at least 1 daytime NSHE and 44.7% (n=1086) had at least 1 nocturnal NSHE.  In the past month, $45.64 out-of-pocket was spent on foods, glucose products, transportation, etc. to either prevent or cope with these NSHE’s. For daytime NSHE’s, the average amount of time respondents reported not functioning at their usual level was 9.0±24.9 hours if the NSHE occurred while they were active and 12.4±62.3 hours for NSHE occurring while not active. On average, 8.3 extra blood glucose monitoring test strips were used and insulin was decreased on average by 10 units over the following 6 days. For sleep related NSHE’s, on average, it took 1.4±1.9 hours to return to sleep with 15.6% not being able to go back to sleep at all after the episode. 81.9% (n=889) reported being tired the following day as a result of the event. Sleep related NSHE’s resulted in on average 11.4±84.1 extra blood glucose monitoring test strips used and insulin was decreased on average by 13.8 units over the following 6 days.  CONCLUSIONS: NSHE have a considerable impact on daily functioning as well as add to the financial burden of living with diabetes. The seriousness of NSHE’s may be underestimated and should be considered an important part of diabetes management.