Its effects vary considerably from person to person, but some people are particularly sensitive.
Coffee isn’t the only source.
Caffeine can also be found in:
- Tea
- Energy drinks
- Cola
- Chocolate
- Pre-workout products
- Certain medications
Even if you fall asleep normally, caffeine may reduce sleep quality or make you more likely to wake during the night.
If you’re waking regularly at 2 or 3 AM, consider looking at not just your evening routine but also your total caffeine intake and timing throughout the day.
5. Your Blood Sugar May Be Contributing—But Don’t Assume It Is
Blood glucose changes can affect sleep in certain circumstances.
For people with diabetes or those taking glucose-lowering medications, nighttime hypoglycemia can sometimes cause sweating, shakiness, confusion, nightmares, or awakening.
High blood glucose can also contribute to increased thirst and urination, which can interrupt sleep.
However, waking at 2 or 3 AM by itself is not evidence that your blood sugar is too high or too low.
