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Symptom Checker

Step 4: Read and complete the decision guide to learn more about your symptoms.

Daytime Drowsiness

Now that morning headaches are not an issue, we can move on to some of the more common reasons for feeling very drowsy during the day.

Most people need at least seven hours sleep per night and some need nine hours.

Assuming that you are in bed for at least seven hours with the lights out and television off, the most common cause of daytime drowsiness is poor quality sleep.

Do you think that you have problems sleeping?

Yes, I am having trouble sleeping.

No, I am not having trouble sleeping.

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