Sleep Times: Hours and Cycles for Every Schedule

Pick your bedtime and your alarm. Each page shows the real total once you subtract the time it takes to fall asleep, how many complete 90-minute cycles that is, and how far the alarm sits from a cycle boundary.

If your times are not listed, put them straight into the hours of sleep calculator.

Every schedule ranked by where the alarm lands

All 71 schedules above, sorted by how close the alarm falls to the end of a sleep cycle, then by total sleep. Method: time asleep is time in bed minus 15 minutes to fall asleep, split into 90-minute cycles. “Off boundary” is the gap between the alarm and the nearest cycle end, before or after. Real cycles run 70 to 120 minutes, so read the ranking as a guide to which schedules start from a better guess, not as a precise score.

Download the data as CSV (71 rows), free to reuse under CC BY 4.0 with a link back.