Classification of Sleep/Wakefulness using Nasal Pressure for Patients with Sleep-disordered Breathing

The present invention relates to a device and method for classifying the sleep/wakefulness of a patient with sleep-disordered breathing using a nasal pressure signal obtainable from continuous positive airway pressure (CPAP). The method for classifying the sleep/wakefulness of a patient with sleep-disordered breathing using a nasal pressure signal according to the present invention includes a step of detecting a sleep-disordered breathing event; a step of identifying a sleep-disordered breathing interval; a step of extracting the feature vector of a normal breathing interval; and a step of classifying the sleep and wakefulness of a support vector machine classifier.