| Metric | Value |
|---|---|
| CPAP usage hours | 6.48 |
| Session count | 1 |
| AHI | 1.23 |
| RDI | 1.39 |
| Obstructive apneas (OA) | 7 |
| Hypopneas (H) | 1 |
| Central apneas (CA) | 0 |
| Unclassified apneas (UA) | 0 |
| RERA | 1 |
| Pressure_Avg | 7.54 |
| Pressure_Min | 4.00 |
| Pressure_Max | 13.20 |
| Pressure_90th | 10.36 |
| Leak_Avg | 1.04 |
| Leak_Max | 34.80 |
| Leak_90th | 3.60 |
| FL_Avg | 0.0166 |
| FL_P95 | 0.11 |
| FL_Max | 0.33 |
| Min_Above_005 (min) | 42.2 |
| Min_Above_010 (min) | 22.2 |
| Min_Above_020 (min) | 3.5 |
| Frac_NonZero (FL samples) | 23.68% |
| Apple Watch time in bed (min) | 385.9 |
| Apple Watch total sleep (min) | 378.4 |
| Apple Watch awake (min) | 7.5 |
| Apple Watch deep sleep (min / %) | 52.2 / 13.79% |
| Apple Watch REM sleep (min / %) | 96.8 / 25.60% |
| Apple Watch core sleep (min / %) | 229.3 / 60.61% |
| Sleep efficiency (TSD/TIB) | 98.0% |
Trailing windows exclude tonight by construction (they cover the 7 and 30 nights ending 2026-09-27).
| Metric | Tonight | 7d avg | 30d avg | Δ vs 7d | Δ vs 30d | 30d z |
|---|---|---|---|---|---|---|
| AHI | 1.23 | 2.23 | 2.18 | -44.8% | -43.6% | -1.43 |
| OA count | 7.00 | 8.43 | 10.00 | -16.9% | -30.0% | -0.84 |
| H count | 1.00 | 5.00 | 3.20 | -80.0% | -68.8% | -1.00 |
| CA count | 0.00 | 0.43 | 0.77 | -100.0% | -100.0% | -0.76 |
| RERA count | 1.00 | 0.86 | 0.73 | +16.7% | +36.4% | 0.31 |
| Pressure_Avg | 7.54 | 7.70 | 7.53 | -2.1% | +0.1% | 0.01 |
| Pressure_90th | 10.36 | 10.31 | 10.05 | +0.4% | +3.1% | 0.66 |
| Leak_Avg | 1.04 | 1.42 | 0.91 | -26.8% | +14.4% | 0.20 |
| Leak_Max | 34.80 | 24.17 | 19.04 | +44.0% | +82.8% | 2.17 |
| Leak_90th | 3.60 | 4.97 | 2.88 | -27.6% | +25.0% | 0.24 |
| Usage hours | 6.48 | 6.22 | 6.42 | +4.2% | +1.0% | 0.16 |
| FL_P95 | 0.11 | 0.10 | 0.10 | +11.6% | +14.2% | 0.76 |
| Min_Above_010 | 22.20 | 17.00 | 17.23 | +30.6% | +28.8% | 0.94 |
| Min_Above_020 | 3.50 | 3.54 | 3.86 | -1.2% | -9.4% | -0.21 |
| Metric | Recent 7d | Prior 7d | Δ | Δ % |
|---|---|---|---|---|
| AHI | 2.127 | 2.201 | -0.074 | -3.4% |
| OA | 8.714 | 9.857 | -1.143 | -11.6% |
| H | 4.286 | 3.571 | +0.714 | +20.0% |
| CA | 0.286 | 1.000 | -0.714 | -71.4% |
| Pressure_Avg | 7.659 | 7.547 | +0.111 | +1.5% |
| Pressure_90th | 10.300 | 9.874 | +0.426 | +4.3% |
| Leak_Avg | 1.440 | 0.670 | +0.770 | +114.9% |
| Leak_90 | 5.314 | 1.714 | +3.600 | +210.0% |
| Leak_Max | 27.086 | 14.057 | +13.029 | +92.7% |
| Usage hours | 6.261 | 6.549 | -0.287 | -4.4% |
| FL_P95 | 0.101 | 0.097 | +0.004 | +4.4% |
| Min_Above_010 | 17.857 | 17.814 | +0.043 | +0.2% |
| Min_Above_020 | 3.629 | 3.986 | -0.357 | -9.0% |
| Date | AHI | OA | H | CA | PAvg | P90 | LAvg | LMax | L90 | FL_P95 | MinAbv010 | MinAbv020 | Hours |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-09-19 | 3.23 | 15 | 5 | 0 | 7.60 | 9.64 | 0.41 | 14.40 | 1.20 | 0.10 | 16.8 | 2.1 | 6.18 |
| 2026-09-20 | 2.18 | 7 | 7 | 0 | 8.21 | 10.54 | 1.85 | 27.60 | 6.00 | 0.13 | 28.6 | 7.0 | 6.42 |
| 2026-09-21 | 1.94 | 5 | 6 | 1 | 7.82 | 10.46 | 0.90 | 14.40 | 1.20 | 0.09 | 16.2 | 2.9 | 6.20 |
| 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 |
Based on 67 matched (CPAP + Apple Watch sleep-stage) nights through 2026-09-28.
| Pair | the user r | Interpretation |
|---|---|---|
| AHI vs deep_pct | -0.139 | weak negative |
| AHI vs awake_min | -0.161 | weak negative |
| OA vs awake_min | -0.040 | negligible negative |
| Leak_Avg vs deep_pct | -0.029 | negligible negative |
| Leak_90th vs deep_pct | -0.051 | negligible negative |
| Leak_Max vs awake_min | -0.175 | weak negative |
| FL_P95 vs awake_min | 0.145 | weak positive |
| Min_Above_010 vs deep_pct | -0.166 | weak negative |
Leak_90 median split (median = 2.40): - Low-leak nights (n=44): mean deep% 14.18, awake 14.16 min - High-leak nights (n=23): mean deep% 12.84, awake 11.04 min
Second consecutive good night on the obstruction front: AHI 1.23, OA 7, H 1 — all at or near the low end of the 30-day range. The event-mix pattern that drew attention 2026-09-25/26 (elevated hypopneas) has clearly broken; this is the lowest H count in 10 nights.
The one new flag is the Leak_Max spike at 34.8 L/min. That's the highest single leak-max in the 30-day window, but it is not accompanied by elevated Leak_Avg (1.04, well within the recent week) or Leak_90 (3.6, down from last night's 4.80). The signature of (high Leak_Max + low Leak_Avg + modest Leak_90) is classic for a brief transient event — most likely a mid-session mask shift that lasted a few minutes and then self-corrected. Not a persistent-leak concern. However, the Leak_Max value is high enough in absolute terms that if it recurs tomorrow, it's worth examining mask fit or headgear tension.
Week-over-week leak is still clearly elevated vs the prior week (+115% / +210%), but the trend has eased from the 2026-09-26 peak. If the next few nights continue in the pattern of 2026-09-27/28, the running-week averages will drop back toward baseline by mid-week.
Apple Watch recorded TIB 386 min with awake 7.5 min — the 2nd-lowest awake count in 10 matched nights, consistent with the lower CPAP event load. Deep sleep 13.79% is normal; REM 25.60% is in the typical mid-20s range. Sleep efficiency 98.0% is strong.
Overall this is a comfortably normal night; the only item to track is whether the Leak_Max transient recurs.