Poor sleep at night may raise blood sugar the next day. Poor sleep at night may lead to endocrine dysfunction, elevated thyroxine, elevated adrenocorticotropic hormone, and potentially elevated blood sugar. In order to know if your blood sugar is elevated, you need to measure your blood sugar. If your blood sugar is above normal you need to prevent diabetes. Occasional poor sleep at night generally has little effect on blood glucose, if a long period of poor sleep may lead to elevated blood glucose, poor sleep at night people should stay away from undesirable triggers, the sleeping environment should be quiet, the air should be fresh, to have a good mood, conducive to a good night’s sleep. Occasional poor sleep at night do not need to worry about, for blood sugar is not very big, do not because of bad mood and affect the health. If the blood sugar rises, it is recommended to consult the hospital in time.