Parasomnias are a disorder that afflicts a part of the population, often can be easily solved, others instead can lead to more serious disorders, such as REM behavior disorder as it can be a warning premotor for neurogenerative diseases such as Parkison and Dementia with Lewy bodies. The study carried out makes it possible to analyze the various stages of sleep and subsequently extract the characteristics of each phase with EMG data from CMS (Sleep Medicine Center). The data, however, were noisy, so they were pre-processed with bandpass filters and notch filter because, due to the machines used, for each measurement it was noted there was a peak in 45 Hz, which was removed for all subjects.