A heart failure management system comprising: one or more sensors to measure one or more sensor-based parameters; at least one storage component storing a plurality of pacing therapies; and processing circuitry operably coupled to the one or more sensors and the at least one storage component, the processing circuitry configured to: determine whether the one or more monitored sensor-based parameters indicate atrial tachycardia or atrial fibrillation; deliver a first pacing therapy from the stored plurality of pacing therapies in response to the one or more sensor-based parameters indicating atrial tachycardia or atrial fibrillation; in response to the one or more sensor-based parameters not indicating atrial tachycardia or atrial fibrillation, determine whether the one or more monitored sensor-based parameters indicate the patient is asleep; deliver a second pacing therapy from the stored plurality of pacing therapies in response to the one or more sensor-based parameters indicating the patient is asleep; in response to the one or more sensor-based parameters not indicating the patient is asleep, atrial tachycardia, or atrial fibrillation, determine whether the one or more monitored sensor-based parameters indicate the patient's P-wave duration exceeds a P-wave duration threshold value; deliver a third pacing therapy from the stored plurality of pacing therapies in response to the one or more sensor-based parameters indicating the patient's P-wave duration exceeds a P-wave duration threshold value; and deliver a fourth pacing therapy from the stored plurality of pacing therapies in response to the one or more sensor-based parameters not indicating the patient's P-wave duration exceeds a P-wave duration threshold one or more sensors to measure one or more sensor-based parameters; at least one storage component storing a plurality of pacing therapies; and processing circuitry operably coupled to the one or more sensors and the at least one storage component, the processing circuitry configured to: determine whether the one or more monitored sensor-based parameters indicate atrial tachycardia or atrial fibrillation; deliver a first pacing therapy from the stored plurality of pacing therapies in response to the one or more sensor-based parameters indicating atrial tachycardia or atrial fibrillation; in response to the one or more sensor-based parameters not indicating atrial tachycardia or atrial fibrillation, determine whether the one or more monitored sensor-based parameters indicate the patient is asleep; deliver a second pacing therapy from the stored plurality of pacing therapies in response to the one or more sensor-based parameters indicating the patient is asleep; in response to the one or more sensor-based parameters not indicating the patient is asleep, atrial tachycardia, or atrial fibrillation, determine whether the one or more monitored sensor-based parameters indicate the patient's P-wave duration exceeds a P-wave duration threshold value; deliver a third pacing therapy from the stored plurality of pacing therapies in response to the one or more sensor-based parameters indicating the patient's P-wave duration exceeds a P-wave duration threshold value; and determine whether the one or more monitored sensor-based parameters indicate atrial tachycardia or atrial fibrillation; deliver a first pacing therapy from the stored plurality of pacing therapies in response to the one or more sensor-based parameters indicating atrial tachycardia or atrial fibrillation; in response to the one or more sensor-based parameters not indicating atrial tachycardia or atrial fibrillation, determine whether the one or more monitored sensor-based parameters indicate the patient is asleep; deliver a second pacing therapy from the stored plurality of pacing therapies in response to the one or more sensor-based parameters indicating the patient is asleep; in response to the one or more sensor-based parameters not indicating the patient is asleep, atrial tachycardia, or atrial fibrillation, determine whether the one or more monitored sensor-based parameters indicate the patient's P-wave duration exceeds a P-wave duration threshold value; deliver a third pacing therapy from the stored plurality of pacing therapies in response to the one or more sensor-based parameters indicating the patient's P-wave duration exceeds a P-wave duration threshold value; and