I don't know how well it compares to a spanish siesta but the abstract ends with "In contrast, short afternoon naps at the workplace improved an overall index o

I don't know how well it compares to a spanish siesta but the abstract ends with "In contrast, short afternoon naps at the workplace improved an overall index of outcomes by 0.12 standard deviations, with significant increases in productivity, psychological well-being, and cognition, but a decrease in work time."