My 12 year old has begun swim team practices again and he exercises incredibly hard for an hour or more each evening, finishing at 8pm. He goes to bed at 9pm and at that time his BG is usually between 120-150 with no IOB. However, we are finding that his BG is continuing to drop dramatically overnight to the 70's by 1am. Last night he needed 30g CHO to get him above 120 and he was still only 125 at 7am. He only attends swim practices 3-4 times a week and so making a global change to his basal rate would not be preferred. Would it be better to give him a snack right before practice or right after and then not bolus? We already only bolus him for about 75% of his CHO at dinner time and then suspend his basal for one hour while he works out. However, the way I see it, we should probably make sure his BG is closer to 150-175 at bedtime on the days when he has been working out hard. Any thoughts? We have an appointment with his endo next week so can probably figure things out then but he has 4 more practices before then.