Sleep
Estimate sleep from the age, body, activity, or schedule inputs. Use this free sleep for fast, clear results with no signup required.
Sleep guide
What it is for
The Sleep provides a planning estimate from the information entered.
How it is calculated
Add exactly eight hours to the entered bedtime and wrap the clock at midnight. This tool does not calculate sleep cycles, sleep latency or an age-specific sleep requirement.
Assumptions
It assumes the inputs use the requested units and represent a general reference population, not an individual assessment.
Example
Entering bedtime 22:00 gives a wake time of 06:00 the following morning, assuming eight uninterrupted hours.
Limitations
This is an educational estimate, not a diagnosis, treatment, or dosing instruction. Consult a licensed healthcare professional, particularly during pregnancy, with symptoms, or before changing health behavior.
Public source: CDC: About Healthy Weight