A practical bedtime-by-age guide that starts with recommended sleep duration and works backward from the time you need to wake up.
Start with sleep duration, not a fixed bedtime
There is no single bedtime for every person of the same age. A useful bedtime depends on the wake-up time and the amount of sleep needed.
Teenagers
Teenagers generally need more sleep than adults. Early school schedules can make it especially important to protect enough time in bed.
Adults
For adults, build the schedule around adequate total sleep first. Cycle-based times can then be used as optional planning points.
Older adults
Sleep patterns can change with age. A calculator can help with timing, but persistent sleep problems deserve individualized advice.
Work backward from wake-up time
Choose the wake-up time you must keep, allow enough sleep opportunity, then add extra time for falling asleep. Use the calculator to compare practical options.
Use the calculator and tracker together
Try the sleep calculator for bedtime and wake-up estimates, then save your choice to the weekly sleep tracker to compare your routine over time.
Plan your next bedtime or wake-up time.
Open the sleep calculatorRelated: Best time to sleep and wake up · Sleep cycles explained · How much sleep do you need?