Fig. 2
From: Sleep in disorders of consciousness: behavioral and polysomnographic recording
Exemplary hypnograms of four patients. a An UWS patient who remained awake at night but slept during the day. b An MCS patient with close-to-normal sleep distribution. c An UWS patient with uniformly distributed sleep over the 24-h period. d A CC patient with a pattern of well-structured sleep during the night and an afternoon nap. Notes: sleep—electrophysiological sleep; eyes—behavioral sleep