Low blood glucose can happen at any time of day. But it may be more likely to happen during sleep, when you go for several hours without eating. It's also more of a risk early in your treatment, as your body adjusts to your new insulin regimen. Here are a few steps you can take to help prevent low blood glucose during the night.
Check blood glucose at bedtime. You need to make sure that your blood glucose is high enough to sustain you through the hours you're asleep. Most children and teens should aim for a bedtime blood glucose of over 100 mg/dL. If you hit this bedtime target, you can go to sleep as usual.
If bedtime blood glucose is less than 100 mg/dL:
- Have a nighttime snack. (If a snack is already part of your daily schedule, add some carbohydrate to the snack.)
- Recheck your blood glucose in one to two hours. You can go to sleep after the snack -- you'll just need to wake up to recheck.