Try observing whether your sleep changes on nights when you don’t drink.
Caffeine From Earlier in the Day May Still Be Affecting You
Caffeine can remain in the body for hours.
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.
