| Metric | Value |
|---|---|
| CPAP usage hours | 6.25 |
| Session count | 1 |
| AHI | 1.44 |
| RDI | 1.44 |
| Obstructive apneas (OA) | 7 |
| Hypopneas (H) | 2 |
| Central apneas (CA) | 0 |
| Unclassified apneas (UA) | 0 |
| RERA | 0 |
| Pressure_Avg | 8.01 |
| Pressure_Min | 4.00 |
| Pressure_Max | 11.36 |
| Pressure_90th | 10.40 |
| Leak_Avg | 1.18 |
| Leak_Max | 16.80 |
| Leak_90th | 3.60 |
| FL_Avg | 0.0180 |
| FL_P95 | 0.10 |
| FL_Max | 0.49 |
| Min_Above_005 (min) | 47.3 |
| Min_Above_010 (min) | 16.9 |
| Min_Above_020 (min) | 2.0 |
| Frac_NonZero (FL samples) | 32.62% |
| Apple Watch time in bed (min) | 364.3 |
| Apple Watch total sleep (min) | 339.7 |
| Apple Watch awake (min) | 24.6 |
| Apple Watch deep sleep (min / %) | 54.7 / 16.10% |
| Apple Watch REM sleep (min / %) | 62.2 / 18.32% |
| Apple Watch core sleep (min / %) | 222.8 / 65.58% |
| Sleep efficiency (TSD/TIB) | 93.3% |
Trailing windows exclude tonight by construction (they cover the 7 and 30 nights ending 2026-09-29).
| Metric | Tonight | 7d avg | 30d avg | Δ vs 7d | Δ vs 30d | 30d z |
|---|---|---|---|---|---|---|
| AHI | 1.44 | 1.88 | 2.12 | -23.3% | -32.2% | -1.04 |
| OA count | 7.00 | 8.14 | 9.73 | -14.0% | -28.1% | -0.79 |
| H count | 2.00 | 3.43 | 3.07 | -41.7% | -34.8% | -0.50 |
| CA count | 0.00 | 0.29 | 0.73 | -100.0% | -100.0% | -0.72 |
| RERA count | 0.00 | 0.71 | 0.67 | -100.0% | -100.0% | -0.79 |
| Pressure_Avg | 8.01 | 7.75 | 7.51 | +3.4% | +6.6% | 1.32 |
| Pressure_90th | 10.40 | 10.45 | 10.07 | -0.4% | +3.2% | 0.66 |
| Leak_Avg | 1.18 | 1.36 | 0.87 | -13.0% | +35.6% | 0.47 |
| Leak_Max | 16.80 | 26.74 | 20.12 | -37.2% | -16.5% | -0.40 |
| Leak_90th | 3.60 | 4.97 | 2.64 | -27.6% | +36.4% | 0.33 |
| Usage hours | 6.25 | 6.30 | 6.38 | -0.8% | -2.0% | -0.34 |
| FL_P95 | 0.10 | 0.10 | 0.09 | +2.9% | +5.6% | 0.30 |
| Min_Above_010 | 16.90 | 17.26 | 16.51 | -2.1% | +2.4% | 0.09 |
| Min_Above_020 | 2.00 | 3.54 | 3.83 | -43.5% | -47.7% | -1.05 |
| Metric | Recent 7d | Prior 7d | Δ | Δ % |
|---|---|---|---|---|
| AHI | 1.806 | 2.253 | -0.447 | -19.8% |
| OA | 7.857 | 9.143 | -1.286 | -14.1% |
| H | 3.286 | 4.429 | -1.143 | -25.8% |
| CA | 0.286 | 0.429 | -0.143 | -33.3% |
| Pressure_Avg | 7.779 | 7.591 | +0.187 | +2.5% |
| Pressure_90th | 10.494 | 9.971 | +0.523 | +5.2% |
| Leak_Avg | 1.114 | 1.109 | +0.006 | +0.5% |
| Leak_90 | 3.771 | 3.429 | +0.343 | +10.0% |
| Leak_Max | 25.371 | 19.714 | +5.657 | +28.7% |
| Usage hours | 6.313 | 6.286 | +0.027 | +0.4% |
| FL_P95 | 0.097 | 0.097 | +0.000 | +0.0% |
| Min_Above_010 | 17.186 | 17.457 | -0.271 | -1.6% |
| Min_Above_020 | 3.357 | 3.514 | -0.157 | -4.5% |
| Date | AHI | OA | H | CA | PAvg | P90 | LAvg | LMax | L90 | FL_P95 | MinAbv010 | MinAbv020 | Hours |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 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 |
Based on 69 matched (CPAP + Apple Watch sleep-stage) nights through 2026-09-30.
| Pair | the user r | Interpretation |
|---|---|---|
| AHI vs deep_pct | -0.142 | weak negative |
| AHI vs awake_min | -0.176 | weak negative |
| OA vs awake_min | -0.050 | negligible negative |
| Leak_Avg vs deep_pct | -0.024 | negligible negative |
| Leak_90th vs deep_pct | -0.046 | negligible negative |
| Leak_Max vs awake_min | -0.149 | weak negative |
| FL_P95 vs awake_min | 0.026 | negligible positive |
| Min_Above_010 vs deep_pct | -0.162 | weak negative |
Leak_90 median split (median = 2.40): - Low-leak nights (n=45): mean deep% 14.16, awake 14.32 min - High-leak nights (n=24): mean deep% 12.97, awake 11.60 min
Fourth consecutive strong CPAP night on obstruction metrics: AHI 1.44, OA 7, H 2. The sub-1.5 AHI run (now 4 nights long) is the longest in the 30-day window, confirming that whatever drove the 2026-09-25/26 event cluster has fully cleared.
Pressure_90th 10.40 eased from yesterday's 30-day high of 11.34 but still sits above the 30d mean (z = +0.66). The pattern of "higher-than-usual titration despite low event counts" from 2026-09-29 is persisting at a moderated level — likely still FL-driven at mid-pressure. Not actionable.
Leak metrics look benign: Leak_Avg 1.18 and Leak_90 3.6 are moderately elevated relative to the quiet nights of 2026-09-29, but Leak_Max 16.8 is normal — no transients. Week-over-week leak continues to improve (+1% / +10%).
The second night in a row with elevated awake minutes (24.6 vs 10-night trailing avg ~10) is now a pattern worth naming. Last night was a one-off, two consecutive is a trend candidate. REM minutes 62.2 are also the second-lowest in 10 matched nights. The decoupling continues: CPAP metrics are at or near their 30-day best levels, but Apple Watch sleep quality has deteriorated the last two nights. If a third night follows this pattern, this becomes a real signal worth investigating (sleep environment changes, late caffeine, stress load, etc.). For now: flag and watch.
Core sleep percentage 65.58% is on the higher side, with deep + REM time compressed. This is consistent with lighter overall sleep architecture.