Sleep bradycardia (sinus bradycardia): Symptoms and treatment
Sleep bradycardia is a slow heart rate during sleep. It may be a natural, healthy sleep response or a sign of an underlying health issue. Another name for the condition is sinus bradycardia. Most healthy adults have a heart rate between 60 and 100 beats per minute (bpm) at rest. Bradycardia means that the heart rate is slower than usual. What doctors consider too slow depends on a person’s age and physical condition.