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(A) Baseline hypnogram. (B) Postintervention actigraphy sleep wake hypnogram. A, artefact; W, wake; R, rapid eye movement sleep; Stage 1 sleep (N1 American Academy of Sleep Medicine); Stage 2 sleep (N2 American Academy of Sleep Medicine); Stage 3 and 4 sleep-slow wave sleep (N3 American Academy of Sleep Medicine).
