Set the Day of the week for tomorrow, and the time you want to be up by (I add a half hour). Then if you're not awake to move the alarm to the next day on time, it'll add a datapoint to a goal on beeminder. Set the goal up to "Do Less" oversleeping.
If
Every day of the week at
This Trigger fires only on specific days of the week at the time you provide.
Fewer details
Discover more time saving integrations for Beeminder and Date & Time