Tissue composition in chronically sleep-restricted rats and ambulation controls, with and without a lengthy recuperation period.

Values are means (SD).aN = 7–10;bN = 6–8, except for N = 3–5 for AC and SR hearts and SR kidney weights and associated calculations of g/tissue and % organ mass. Statistical comparisons are provided for AC and SR rats without extended recovery, and AC and SR rats with extended recovery: *PPP = 0.001 for between-group planned comparisons. Ambulation control groups are abbreviated AC, and sleep-restricted groups, SR.†Reported for SR and AC rats without extended recovery (10).