Fig. 3From: Role of sleep on respiratory failure after extubation in the ICUBox plots showing median duration and interquartile range [IQR 25th–75th percentiles] of total sleep, light or atypical sleep, deep sleep stage 3 and rapid eye movement (REM) sleep stage. No significant differences were found between patients who developed post-extubation respiratory failure (red bars) and those who were successfully extubated (blue bars)Back to article page