Fasting capillary blood glucose was lower after nights with hypoglycaemia than without [5.5 (3.0) vs. 14.5 (4.5) mmol/l, P<0.0001], and was lower on nights with more severe nocturnal hypoglycaemia [5.5 (3.0) vs. 8.2 (2.3) mmol/l; P = 0.018 on nights with nadir sensor glucose of<2.2 mmol/l vs. 3.5 mmol/l]. There were only two instances of fasting capillary blood glucose>10 mmol/l after nocturnal hypoglycaemia, both after likely treatment of the episode