Isn't the group that stayed awake the control group? Number of participants is mentioned repeatedly, also per group. I suspect you just read the press article

Isn't the group that stayed awake the control group? Number of participants is mentioned repeatedly, also per group. I suspect you just read the press article and not the study (linked in the press article). https://www.science.org/doi/10.1126/sciadv.abj5866 https://www.science.org/doi/10.1126/sciadv.abj5866