In this study, the effect of music listening was examined among sleep disorder patients using electroencephalography (EEG). The categories of music chosen were Kapi, Kalyani and Neelambari (South Indian classical ragas). Sixteen participants were chosen and placed into two groups (with and without sleep disorders) based on Epworth Sleepiness Scale (ESS) questionnaire. EEG signals were recorded from the two electrode locations (Fp1 and Fp2) while listening to three music. Wavelet packet decomposition technique was used to analyze the acquired EEG signals and relative wavelet packet energy (RWPE) features were extracted from the theta, alpha and beta bands. Results showed that the RWPE at beta2 band was significantly (p < 0.05) high for Kapi raga as compared to Kalyani and Neelambari. While listening to Kapi raga, sleep disorder patients have increased alertness and decreased arousal level. The findings of the study suggest that Kapi raga can be used as an optimum therapy/ rehabilitative tool for sleep disorder patients
