Patent ID: 7491181

Claim:
A method comprising: monitoring a plurality of physiological parameters of a patient via a medical device, wherein the plurality of physiological parameters includes at least one parameter indicative of patient physical activity monitored via at least one accelerometer; determining when the patient is attempting to sleep; determining when the patient is asleep based on at least one of the physiological parameters; determining values of at least one sleep quality metric that is indicative of sleep quality based on at least one of when the patient is attempting to sleep, when the patient is asleep, or values of at least one of the physiological parameters when the patient is asleep; periodically determining an activity level of the patient based on the at least one of the physiological parameters indicative of patient physical activity that is monitored via the at least one accelerometer; and determining a value of at least one activity metric based on activity levels determined when the patient is not attempting to sleep.