ShiftForge

Why do you crash in the early afternoon, and why does a 6:30 alarm feel brutal? Two clocks in your body decide it — sleep pressure and your circadian rhythm — and you can run them. Pick a schedule, watch your alertness rise and fall across the day, see the sleep debt build over a week, and test for yourself whether a later start or an earlier, screen-free bedtime actually helps. It’s science, not a tracker: nothing here is recorded.