Blood Pressure Medication: What happens if I take it at bedtime and my blood pressure drops during sleep?

It’s completely normal for blood pressure to naturally decrease during sleep, typically by about 10–20% compared to daytime levels. This happens in part because your body is in a resting state and the heart doesn’t have to work against gravity when you’re lying down.

For most people, taking blood pressure medication in the evening is well tolerated and part of a routine recommended by their healthcare provider.

However, if blood pressure drops more than expected overnight, it may be worth discussing with your doctor. Tracking your sleep patterns and heart rate using wearable devices can help provide useful insights, and in some cases, a sleep assessment may be recommended to better understand what’s happening.

If you experience symptoms such as dizziness upon waking, fatigue, or lightheadedness, be sure to mention this to your healthcare professional.