Deze pagina gaat verder waar het Slaaponderzoek vanaf 27 januari eindigde.

 

Dit is een logboek van mijn geluidsmetingen en slaapanalyse, op ongeveer een kilometer afstand van Windpark Rhede, uitgevoerd met twee UMIK-1 microfoons en drie verschillende slaaptrackers, te weten een Oura ring, een Fitbit smartwatch, en Sleep Cycle op mijn iPhone. Nieuw aan de logbestanden van deze pagina is dat ik ook de slaapscores van iHealth ga toevoegen (iHealth doet zelf geen metingen maar combineert de meetgegevens van de andere apps). De apps die ik gebruik hebben elk zo hun voordelen en nadelen. Zo hebben Oura en vooral Fitbit de neiging om dutjes en aanvullende slaap in de vroege ochtend over het hoofd te zien. Sleep Cycle heeft een helel praktische display, maar de app schat mijn diepe slaap véél korter in dan de andere apps. Door de apps gelijktijdig te gebruiken, hoop ik een zo nauwkeurig mogelijk beeld te krijgen van mijn slaap.

 

Eind maart en begin april 2026 gaan de gegevens vergeleken worden met de geluidsmetingen en slaapanalyse gedurende anderhalve week in de Belgische Ardennen, om te zien of de afwezigheid van infrasoon windmolengeluid tot een langere en diepere slaap leidt.

 

Om de zoveel dagen begin ik aan een nieuwe pagina om te voorkomen dat de hoeveelheid afbeeldingen te groot wordt.

 

Met de klok mee:

Room EQ Wizard decibelmeting (gratis) in Z-weging,

SpectrumLab spectrumanalyse (gratis) 0-155 Hz,

Windy windkaart (gratis),

Fitbit sleep tracking (aanschafprijs, daarna gratis),

Sleep Cycle sleep tracking (gratis).

In het midden opnieuw de Windy windkaart app.

Vanaf 6 januari aangevuld met de Oura ring 

slaap & health tracker (aanschafprijs, daarna betaald).
Meetmicrofoons (2x): miniDSP UMIK-1

 

De ochtend van 25 februari

 

De eN3 ("estimated deep sleep") volgens de apps:

Oura 41 minuten

Sleep Cycle 13 minuten

Fitbit 59 minuten

iHealth 40 minuten

 

Zoals je kunt zien is Sleep Cycle weer de meest "pessimistische". Fitbit is zoals wel vaker het meest optimistisch.

 

 

De gegevens volgens Oura, die deze nacht de tweede slaapsessie over het hoofd heeft gezien omdat deze te kort duurde en de slaap niet diep genoeg was:

 

 

Oura interpreteerde de tweede slaapfase als "restorative time", alsof ik had liggen mediteren:

 

 

De slaapgegevens volgens Sleep Cycle, verdeeld over twee slaapsessies:

 

 

De slaapgegevens volgens Fitbit, zonder informatie over de tweede slaapsessie behalve de duur ervan:

 

 

De synthese van iHealth:

 

 

De geluidsdruk (decibellen) in Z-weging tijdens de eerste slaapsessie, waarbij ik vooral geïnteresseerd ben in de roze lijn, de LZeq per minuut (hier zo'n 56 dBZ aan het begin van de nacht en zo'n 51 dBZ bij het ontwaken rond half vijf):

 

 

En de decibellen tijdens de tweede slaapsessie (in een iets andere schaal weergegeven), hier dus zo'n 52 dBZ bij het in slaap vallen en 54 dBZ bij het ontwaken:

 

 

Hieronder wat screenshots uit het spectrogram (frequenties weergegeven in Hertz, met het laagfrequente en infrasone geluid links) van deze nacht. Vanwege de lage windsnelheid is de geluidsdruk relatief laag, en begint de nacht "stil":

 

 

Na middernacht wel weer een kronkelende bromtoon rond de 47 Hz (later verschuivend naar de 49 Hz):

 

 

Het beeld vlak voor mijn ontwaken (het geluid van mijn ontwaken en toiletbezoek is hier zichtbaar als horizontale strepen):

 

 

De tweede slaapsessie vanaf 05:36 uur:

 

 

Toename van omgevingsgeluid (voertuigen?) in de vroege ochtend:

 

 

Tijdens die slaapsessie had ik enkel een lichte slaap, met zo nu en dan een micro-arousal en aan het einde een droomfase:

 

 

Tenslotte nog de weerkaarten, zodat we kunnen zien wat de windrichting en windsnelheid was. Weergegeven in knopen, dus hier een zuidenwind van 5 knopen zowel in de avond als in de ochtend:

 

 

Aanvullende informatie over mijn hartslag tijdens de eerste slaapsessie en de tweede:

 

 

Wat me al een tijdje opvalt is dat mijn hartslag bij de tweede slaapsessie, nadat ik een uurtje wakker ben geweest om wat te drinken, me uit te rekken, iets te eten en/of alvast wat werk te doen op de computer, vrijwel altijd een stuk trager is.

 

 

Sleep, Sound & Wind Log #47

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-25
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** 4h 42m
* **MainSleep_TotalSleep_SleepCycle_min** 6h 27m
* **MainSleep_TotalSleep_Fitbit_min** 6h 29m
* **MainSleep_TotalSleep_iHealth_min** 6h 10m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** 41m
* **MainSleep_eN3_SleepCycle_min** 13m
* **MainSleep_eN3_Fitbit_min** 59m
* **MainSleep_eN3_iHealth_min** 40m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** 56 dB
* **MainSleep_LZeq_End_dB** 54 dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start** S
* **MainSleep_WindSpeed_Start** 5 Kt
* **MainSleep_WindDirection_End** S
* **MainSleep_WindSpeed_End** 5 Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

De ochtend van 26 februari

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****

 

Sleep, Sound & Wind Log #

## DATE & IDENTIFIERS
* **Date_morning_ISO** (YYYY-MM-DD) 2026-02-
* **Nap_index** (0 = no nap, 1 = first nap, 2 = second nap, etc.) 0
---
## MAIN SLEEP (night preceding Date_morning)
### Total Sleep Duration
* **MainSleep_TotalSleep_Oura_min** h m
* **MainSleep_TotalSleep_SleepCycle_min** h m
* **MainSleep_TotalSleep_Fitbit_min** h m
* **MainSleep_TotalSleep_iHealth_min** h m
### Deep Sleep (eN3)
* **MainSleep_eN3_Oura_min** m
* **MainSleep_eN3_SleepCycle_min** m
* **MainSleep_eN3_Fitbit_min** m
* **MainSleep_eN3_iHealth_min** m
---
## NAPS (daytime)
### Total Sleep Duration
* **Nap_TotalSleep_Oura_min**
* **Nap_TotalSleep_SleepCycle_min**
### Deep Sleep (eN3)
* **Nap_eN3_Oura_min**
* **Nap_eN3_SleepCycle_min**
---
## SOUND PRESSURE LEVEL (Z-weighting)
### Main Sleep
* **MainSleep_LZeq_Start_dB** dB
* **MainSleep_LZeq_End_dB** dB
### Nap
* **Nap_LZeq_Start_dB**
* **Nap_LZeq_End_dB**
---
## WIND CONDITIONS
### Main Sleep
* **MainSleep_WindDirection_Start**
* **MainSleep_WindSpeed_Start** Kt
* **MainSleep_WindDirection_End**
* **MainSleep_WindSpeed_End** Kt
### Nap
* **Nap_WindDirection_Start**
* **Nap_WindSpeed_Start**
* **Nap_WindDirection_End**
* **Nap_WindSpeed_End**
---
## NOTES & CONTEXT
---


*****