# Sleep duration planner

Canonical page: https://nepocore.com/tools/sleep-planner/

Plan bedtime from your wake time, desired sleep and time to fall asleep. This browser tool shows the inputs, assumptions and resulting output so you can use it for a specific everyday task.

## How to use it

1. Enter your own values or choose a supported file.
2. Adjust the options and run the tool.
3. Review the result, then copy, export or save it when available.

## Example

Work backward from 07:00 with eight hours of sleep and 15 minutes to fall asleep.

## Limits and checks

Sleep needs and sleep onset vary. This planner uses entered durations and does not assume fixed 90-minute sleep cycles.

## Access and processing

Free to use without an account. Interactive processing requires JavaScript in a modern browser. Input is processed in the browser rather than sent to a processing server. Optional browser storage is not a synchronized account.

## Method and sources

- [CDC — sleep duration and sleep needs](https://www.cdc.gov/sleep/about/)

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