You already have lots of fitbit sleep data, right?
You should look at that data first and use it to guide the experiment. Should you study other metrics of sleep quality?
In particular, you should determine the standard deviation in onset times and do a power analysis to see how long the experiment has to run. I guess there’s a problem that you might not have labels indicating which days are straight home from work days. You should try to remember that. Even without that, a simple filter like Mondays might be a good choice.
You already have lots of fitbit sleep data, right?
You should look at that data first and use it to guide the experiment. Should you study other metrics of sleep quality?
In particular, you should determine the standard deviation in onset times and do a power analysis to see how long the experiment has to run. I guess there’s a problem that you might not have labels indicating which days are straight home from work days. You should try to remember that. Even without that, a simple filter like Mondays might be a good choice.