Description
Measure the overlap between a sleep interval and a recorded nap interval.
Personal health logs distinguish observed events, unknown entries, device/source identifiers and chosen day or streak boundaries. A numerical activity duration or recorded symptom label organizes supplied data rather than diagnosing a condition. Fixed 86400-second days differ from civil days affected by timezone and daylight-saving changes.
Measure the overlap between a sleep interval and a recorded nap interval.
When to use this tool
Use Sleep Log Nap Overlap Duration when checking the stated personal-log, missingness, time or streak convention.
How to use the tool and how it works
- Enter sleepStartMinutes, sleepEndMinutes, napStartMinutes, napEndMinutes. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read overlapMinutes. Use the output convention below.
Require each supplied sleep/nap end>=its start. Return max(0,min(ends)-max(starts)) in minutes.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| sleepStartMinutes | Sleep Start Minutes | Required. Finite number. |
| sleepEndMinutes | Sleep End Minutes | Required. Finite number. |
| napStartMinutes | Nap Start Minutes | Required. Finite number. |
| napEndMinutes | Nap End Minutes | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| overlapMinutes | Overlap Minutes | Required. Finite number. |
{
"input": {
"sleepStartMinutes": 100,
"sleepEndMinutes": 200,
"napStartMinutes": 180,
"napEndMinutes": 220
},
"output": {
"overlapMinutes": 20
}
}Limitations and assumptions
- Clock rollover must already be represented in the coordinates; sleep quality, actual events and clinical significance are not inferred.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Review original records and calibrated devices; consult qualified health professionals for symptoms, interpretation or actual care decisions.
References
Similar or alternative tools
- Activity Log Active Rest Minute Split
Separate active and resting minutes and calculate the resting share of total time.
- Sleep Log Inbed Vs Asleep Gap Tool
Describe the logged awake-in-bed interval and the ratio of asleep to in-bed duration without interpreting sleep health.