Sleep focus schedule

I am confused about how to make appropriate sleep schedules, because the customization for each day starts with the bedtime instead of the wake time. So if I want to have the same wake and bed time Monday morning through Friday morning, but a different bedtime Friday night, this isn’t possible. Friday schedule starts with the bedtime, and the wake time is technically then for Saturday morning. The same issue then occurs for Sunday; I want the same bedtime I do for the weekdays, but not the same wake time, but it starts with the bedtime

Why would the schedules not start each day’s customization with wake time, followed by bed time? Everything gets messed up starting with the bed times for one day and then the wake time being the next day instead of the day you’re trying to edit. It would eliminate this problem and I imagine most want to set their schedules similarly to accommodate a M-F workweek