Daily Report — 2026-10-01

Sleep & CPAP Report — 2026-10-01

🚩 Flags

Summary Table — Night of 2026-10-01

Metric Value
CPAP usage hours 7.12
Session count 1
AHI 0.56
RDI 0.56
Obstructive apneas (OA) 4
Hypopneas (H) 0
Central apneas (CA) 0
Unclassified apneas (UA) 0
RERA 0
Pressure_Avg 6.82
Pressure_Min 4.00
Pressure_Max 10.76
Pressure_90th 9.00
Leak_Avg 0.53
Leak_Max 8.40
Leak_90th 2.40
FL_Avg 0.0119
FL_P95 0.07
FL_Max 0.63
Min_Above_005 (min) 30.6
Min_Above_010 (min) 10.9
Min_Above_020 (min) 2.2
Frac_NonZero (FL samples) 23.52%
Apple Watch time in bed (min) 410.0
Apple Watch total sleep (min) 393.4
Apple Watch awake (min) 16.6
Apple Watch deep sleep (min / %) 66.7 / 16.96%
Apple Watch REM sleep (min / %) 90.3 / 22.96%
Apple Watch core sleep (min / %) 236.3 / 60.08%
Sleep efficiency (TSD/TIB) 96.0%

Comparison to Trailing Averages

Trailing windows exclude tonight by construction (they cover the 7 and 30 nights ending 2026-09-30).

Metric Tonight 7d avg 30d avg Δ vs 7d Δ vs 30d 30d z
AHI 0.56 1.81 2.09 -69.0% -73.2% -2.29
OA count 4.00 7.86 9.50 -49.1% -57.9% -1.62
H count 0.00 3.29 3.13 -100.0% -100.0% -1.52
CA count 0.00 0.29 0.67 -100.0% -100.0% -0.67
RERA count 0.00 0.43 0.63 -100.0% -100.0% -0.74
Pressure_Avg 6.82 7.78 7.52 -12.3% -9.3% -1.84
Pressure_90th 9.00 10.49 10.07 -14.2% -10.6% -2.18
Leak_Avg 0.53 1.11 0.90 -52.4% -41.2% -0.57
Leak_Max 8.40 25.37 20.40 -66.9% -58.8% -1.51
Leak_90th 2.40 3.77 2.72 -36.4% -11.8% -0.11
Usage hours 7.12 6.31 6.37 +12.8% +11.7% 1.98
FL_P95 0.07 0.10 0.09 -27.9% -26.1% -1.40
Min_Above_010 10.90 17.19 16.53 -36.6% -34.1% -1.32
Min_Above_020 2.20 3.36 3.78 -34.5% -41.7% -0.89

Week-over-Week Deltas (recent 7d 2026-09-25–2026-10-01 vs prior 7d 2026-09-18–2026-09-24)

Metric Recent 7d Prior 7d Δ Δ %
AHI 1.650 2.144 -0.494 -23.1%
OA 8.000 8.000 +0.000 +0.0%
H 2.429 5.000 -2.571 -51.4%
CA 0.143 0.286 -0.143 -50.0%
Pressure_Avg 7.701 7.619 +0.083 +1.1%
Pressure_90th 10.326 10.109 +0.217 +2.1%
Leak_Avg 1.106 1.119 -0.013 -1.1%
Leak_90 3.943 3.429 +0.514 +15.0%
Leak_Max 22.457 22.286 +0.171 +0.8%
Usage hours 6.466 6.261 +0.204 +3.3%
FL_P95 0.094 0.100 -0.006 -5.7%
Min_Above_010 16.571 17.914 -1.343 -7.5%
Min_Above_020 3.186 3.529 -0.343 -9.7%

Recent 10-Night Context

Date AHI OA H CA PAvg P90 LAvg LMax L90 FL_P95 MinAbv010 MinAbv020 Hours
2026-09-22 3.20 12 7 0 7.49 10.32 1.03 36.00 2.40 0.10 14.8 3.1 5.93
2026-09-23 1.94 9 3 0 7.78 10.06 2.87 26.40 12.00 0.10 17.4 3.3 6.18
2026-09-24 1.65 3 6 1 7.36 10.18 0.59 28.80 1.20 0.09 15.2 3.4 6.05
2026-09-25 2.74 11 4 1 8.04 10.60 1.13 22.80 3.60 0.11 18.0 3.1 5.83
2026-09-26 2.72 13 6 0 7.66 10.50 2.37 22.80 9.60 0.10 19.2 5.1 6.98
2026-09-27 1.41 6 3 0 7.74 10.08 1.05 18.00 4.80 0.10 18.2 3.9 6.38
2026-09-28 1.23 7 1 0 7.54 10.36 1.04 34.80 3.60 0.11 22.2 3.5 6.48
2026-09-29 1.45 8 1 0 8.10 11.34 0.44 33.60 0.00 0.07 10.6 2.5 6.22
2026-09-30 1.44 7 2 0 8.01 10.40 1.18 16.80 3.60 0.10 16.9 2.0 6.25
2026-10-01 0.56 4 0 0 6.82 9.00 0.53 8.40 2.40 0.07 10.9 2.2 7.12

Historical CPAP → Sleep-Stage Correlations

Based on 70 matched (CPAP + Apple Watch sleep-stage) nights through 2026-10-01.

Pair the user r Interpretation
AHI vs deep_pct -0.158 weak negative
AHI vs awake_min -0.179 weak negative
OA vs awake_min -0.055 negligible negative
Leak_Avg vs deep_pct -0.029 negligible negative
Leak_90th vs deep_pct -0.046 negligible negative
Leak_Max vs awake_min -0.153 weak negative
FL_P95 vs awake_min -0.028 negligible negative
Min_Above_010 vs deep_pct -0.190 weak negative

Leak_90 median split (median = 2.40): - Low-leak nights (n=46): mean deep% 14.22, awake 14.37 min - High-leak nights (n=24): mean deep% 12.97, awake 11.60 min

Interpretation

Tonight is an unqualified best-of-month night on the CPAP side. AHI 0.56 is the lowest in 30 days (prior low 0.87 on 2026-09-18). Zero hypopneas, zero centrals, only 4 obstructive events. Pressure_90th 9.00 eased down from the elevated 10.3–11.3 range of the last week, which is exactly what should happen when the airway is this cooperative. Usage 7.12 h is the longest single-session use in 30 days.

Leak profile is clean across every measure: Leak_Avg 0.53, Leak_90 2.4, Leak_Max 8.4. The two-week elevated-leak pattern that dominated reports from 2026-09-18 through 2026-09-28 has now decisively resolved. Week-over-week leak is -1% / +15%, meaning the recent week has returned to parity with the prior week's baseline. If future reports continue this trajectory, no further mask/cushion investigation is warranted.

The sleep-quality divergence from the last two nights also closed. Awake minutes 16.6 are back toward the 10-night baseline (down from 21.1 and 24.6 the two prior nights). Deep sleep minutes 66.7 are the highest in 10 matched nights, and REM minutes 90.3 rebounded strongly. Sleep efficiency 96.0% is solid. The 2026-09-29/30 awake-minute spikes look increasingly like a transient perturbation rather than the start of a sustained decline.

Pulling back: the five-night sequence 2026-09-27 → 2026-10-01 collectively represents a clean recovery arc from the two-week elevated-leak + elevated-pressure period. Nothing to act on; worth noting the improvement.

Note on data pipeline: CPAP_SYNC_FAILURE.txt shows the ez Share Wi-Fi sync failed this morning at 08:26 UTC (connection timeout to 192.168.4.1), after this report's data had already been pulled. The 2026-10-01 night data is complete. No action needed unless tomorrow's sync fails for the same reason — in which case the user may want to power-cycle the SD card adapter.

Caveats

See all past reports →