How much blood sugar should be normal before bedtime at night

The best control of blood sugar at night before going to bed is between 4.4 and 6.0 millimoles per liter. This range is relatively safe, but the range of blood sugar control should be related to whether there are other diseases. If the patient is older, there are cardiovascular and cerebrovascular diseases or life can not take care of themselves, or some patients because of some chronic diseases, tumors and other life expectancy is not very long, this situation before bedtime blood sugar should be appropriately relaxed, generally can reach 9.0 mmol per liter, to prevent the performance of nocturnal hypoglycemia, affecting the patient's quality of life.