Thanks for clarifying that here -- it took some close reading to understand that. With an otherwise nicely detailed account, the mislabelling of the axes is jar

Thanks for clarifying that here -- it took some close reading to understand that. With an otherwise nicely detailed account, the mislabelling of the axes is jarring. I would definitely expect a positive number to correlate to more sleep deprivation, if the axis is labelled "Sleep Deprivation" or any variant thereof.