Hypertension The study included 1,252 people who were taking at least one medication to treat high blood pressure; their average age was 67. They wore special devices with multiple sensors that continuously tracked their movement and measured their blood pressure every 30 minutes over a 24-hour period. The participants also reported their sleep time, awake time, nocturia frequency, and sleep quality in a diary. To continue reading this article, you must log in . Subscribe to Harvard Health