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Typical 24h-hypno of a cirrhotic patient, showing four naps over day and a disturbed sleep with several wake periods after sleep onset.
Notes: Real time is showed on the lower timeline.
Abbreviations: N1, sleep stage 1; N2, sleep stage 2; N3, sleep stage 3; W, wake; hypno, hypnogram; U, unknown sleep stage; R, rapid eye movement sleep.
