Sleep & CPAP Report — 2026-09-19
🚩 Flags
- AHI 3.23 — elevated vs 30d avg 2.08 (+55.3%). 7d avg 2.15 (+50.5%). OA count 15 vs 7d avg 10.86. H count 5 vs 7d avg 1.71. CA count 0. RERA count 0.
- Leak_90 1.20 L/min — below baseline vs 30d avg 1.84 (-34.8%). Leak_Avg 0.41 (7d 0.47); Leak_Max 14.4 (7d 14.6).
- Sleep architecture: Deep% 10.83 (-18.6% vs 7d, -17.5% vs 30d); REM% 25.42 (+5.9% vs 7d, +6.0% vs 30d); Awake 14.55 min (+74.7% vs 7d, +64.4% vs 30d); Efficiency 96.13%.
- Time in bed 375.8 min (6h 15.8m) — on trend vs 30d 387.8 (-3.1%). Total sleep 361.3 min. CPAP usage 6.18h.
Summary Table — Night of 2026-09-19
| Metric |
Value |
| Sleep start |
2026-09-19T23:55:46-05:00 |
| Time in bed |
375.8 min (6h 15.8m) |
| Total sleep |
361.3 min (6h 1.3m) |
| Sleep efficiency |
96.13% |
| Awake time |
14.55 min |
| Core (N1+N2) sleep |
230.3 min / 63.75% |
| Deep (N3) sleep |
39.14 min / 10.83% |
| REM |
91.83 min / 25.42% |
| CPAP usage hours |
6.18 |
| Session count |
1 |
| AHI |
3.23 |
| RDI |
3.23 |
| Obstructive apneas (OA) |
15 |
| Hypopneas (H) |
5 |
| Central apneas (CA) |
0 |
| Unclassified apneas (UA) |
0 |
| RERA |
0 |
| Pressure_Avg |
7.60 |
| Pressure_Min |
4.00 |
| Pressure_Max |
11.56 |
| Pressure_90th |
9.64 |
| Leak_Avg |
0.41 |
| Leak_Max |
14.4 |
| Leak_90th |
1.2 |
| FL_Avg |
0.0148 |
| FL_P95 |
0.10 |
| FL_Max |
0.32 |
| Min_Above_005 |
37.0 |
| Min_Above_010 |
16.8 |
| Min_Above_020 |
2.1 |
| Frac_NonZero (FL samples) |
23.81% |
Comparison to Trailing Averages
| Metric |
Tonight |
7d avg |
30d avg |
Δ vs 7d |
Δ vs 30d |
| AHI |
3.23 |
2.15 |
2.08 |
+50.5% |
+55.3% |
| OA count |
15.00 |
10.86 |
10.27 |
+38.2% |
+46.1% |
| H count |
5.00 |
1.71 |
2.40 |
+191.7% |
+108.3% |
| CA count |
0.00 |
1.43 |
1.00 |
-100.0% |
-100.0% |
| RERA count |
0.00 |
0.71 |
0.80 |
-100.0% |
-100.0% |
| Pressure_Avg |
7.60 |
7.37 |
7.39 |
+3.1% |
+2.8% |
| Pressure_90 |
9.64 |
9.83 |
9.93 |
-1.9% |
-2.9% |
| Leak_Avg |
0.41 |
0.47 |
0.69 |
-13.3% |
-40.2% |
| Leak_Max |
14.40 |
14.57 |
16.32 |
-1.2% |
-11.8% |
| Leak_90th |
1.20 |
1.37 |
1.84 |
-12.5% |
-34.8% |
| Usage hours |
6.18 |
6.53 |
6.56 |
-5.3% |
-5.8% |
| FL_P95 |
0.100 |
0.093 |
0.095 |
+7.7% |
+5.3% |
| Min_Above_010 |
16.80 |
15.81 |
17.19 |
+6.2% |
-2.3% |
| Min_Above_020 |
2.10 |
4.50 |
4.05 |
-53.3% |
-48.1% |
| Awake min |
14.55 |
8.33 |
8.85 |
+74.7% |
+64.4% |
| TIB min |
375.83 |
386.78 |
387.82 |
-2.8% |
-3.1% |
| Total sleep min |
361.28 |
378.45 |
378.97 |
-4.5% |
-4.7% |
| Deep % |
10.83 |
13.31 |
13.14 |
-18.6% |
-17.5% |
| REM % |
25.42 |
24.00 |
23.98 |
+5.9% |
+6.0% |
| Core % |
63.75 |
62.69 |
62.88 |
+1.7% |
+1.4% |
Week-over-Week Deltas (recent 7d 2026-09-13–2026-09-19 vs prior 7d 2026-09-06–2026-09-12)
| Metric |
Recent 7d |
Prior 7d |
Δ |
Δ % |
| AHI |
2.349 |
1.906 |
+0.443 |
+23.2% |
| OA |
11.857 |
9.000 |
+2.857 |
+31.7% |
| CA |
1.286 |
1.000 |
+0.286 |
+28.6% |
| Pressure_Avg |
7.430 |
7.127 |
+0.303 |
+4.2% |
| Leak_Avg |
0.467 |
0.634 |
-0.167 |
-26.4% |
| Leak_90 |
1.371 |
1.371 |
+0.000 |
+0.0% |
| Deep % (Apple) |
12.89 |
12.01 |
+0.89 |
+7.4% |
| REM % (Apple) |
24.24 |
22.05 |
+2.19 |
+9.9% |
| Awake min (Apple) |
9.37 |
9.03 |
+0.33 |
+3.7% |
| Sleep min (Apple) |
375.59 |
368.81 |
+6.78 |
+1.8% |
| FL_P95 |
0.096 |
0.084 |
+0.011 |
+13.6% |
| Min_Above_010 |
16.400 |
14.643 |
+1.757 |
+12.0% |
| Min_Above_020 |
4.243 |
3.171 |
+1.071 |
+33.8% |
Recent 10-Night Context
| Date |
AHI |
OA |
CA |
PAvg |
P90 |
LAvg |
LMax |
L90 |
FL_P95 |
MinAbv010 |
MinAbv020 |
Deep% |
REM% |
Awake |
| 2026-09-10 |
2.10 |
10 |
3 |
7.14 |
9.30 |
0.14 |
7.2 |
0.0 |
0.07 |
9.7 |
1.4 |
11.44 |
20.34 |
7.02 |
| 2026-09-11 |
2.53 |
13 |
0 |
6.57 |
9.52 |
0.62 |
24.0 |
0.0 |
0.05 |
8.9 |
2.4 |
11.97 |
21.87 |
10.54 |
| 2026-09-12 |
1.81 |
8 |
1 |
7.17 |
9.92 |
0.45 |
14.4 |
1.2 |
0.08 |
12.7 |
3.9 |
— |
— |
— |
| 2026-09-13 |
2.60 |
14 |
1 |
7.78 |
10.16 |
0.47 |
18.0 |
0.0 |
0.11 |
19.1 |
7.6 |
18.06 |
27.63 |
9.53 |
| 2026-09-14 |
2.55 |
12 |
2 |
7.43 |
10.26 |
0.86 |
27.6 |
4.8 |
0.10 |
15.8 |
4.1 |
14.93 |
21.67 |
3.01 |
| 2026-09-15 |
1.93 |
10 |
0 |
7.76 |
10.02 |
0.74 |
14.4 |
2.4 |
0.12 |
21.2 |
6.9 |
12.66 |
24.62 |
8.53 |
| 2026-09-16 |
2.85 |
16 |
4 |
7.20 |
9.68 |
0.09 |
8.4 |
0.0 |
0.08 |
13.5 |
2.8 |
9.37 |
22.95 |
10.04 |
| 2026-09-17 |
2.41 |
11 |
2 |
7.17 |
9.22 |
0.52 |
10.8 |
1.2 |
0.07 |
12.0 |
3.3 |
— |
— |
— |
| 2026-09-18 |
0.87 |
5 |
0 |
7.07 |
9.56 |
0.18 |
8.4 |
0.0 |
0.09 |
16.4 |
2.9 |
11.51 |
23.16 |
10.54 |
| 2026-09-19 |
3.23 |
15 |
0 |
7.60 |
9.64 |
0.41 |
14.4 |
1.2 |
0.10 |
16.8 |
2.1 |
10.83 |
25.42 |
14.55 |
CPAP → Sleep-Stage Correlations (all 76 matched nights)
Correlations computed across full available history (2026-06-23 → 2026-09-19).
| Pair |
the user r |
Interpretation |
| AHI vs deep_pct |
+0.103 |
weak positive |
| AHI vs awake_min |
+0.038 |
negligible |
| OA vs awake_min |
+0.057 |
negligible |
| CA vs deep_pct |
+0.084 |
negligible |
| Leak_Avg vs deep_pct |
-0.137 |
weak negative |
| Leak_90th vs deep_pct |
-0.174 |
weak negative |
| Leak_Max vs awake_min |
+0.071 |
negligible |
| FL_P95 vs awake_min |
-0.092 |
negligible |
| Min_Above_010 vs deep_pct |
-0.026 |
negligible |
Bucket comparison (Leak_90 median split, median = 1.8):
- Low-leak nights (n=38): mean deep% 14.98, awake 14.64 min
- High-leak nights (n=38): mean deep% 13.84, awake 13.98 min
- Δ (high – low): deep% -1.14 pp, awake -0.66 min
Caveats
- Sleep session started at 2026-09-19T23:55:46-05:00 — matched to the 2026-09-19 CPAP file (same-calendar-date convention).
- Apple Watch SpO2/pulse channels not present in current CPAP CSV export.
- Correlations are directional/small-effect only — single-night deviations often exceed what correlations alone would predict.
- All flagged metrics remain within clinically safe ranges (AHI < 5, leak within mask spec); flags mark deviations from the user's own recent baseline, not clinical thresholds.
- Duplicate
2.json / 3.json health-report files (iCloud dedup artifacts) are ignored in favor of the primary copy.
- Matched-night count is 76. Early 2026-06 nights (via multi-day roll-up) have zero-valued pressure/leak channels and remain low-confidence for CPAP metrics prior to ~2026-06-22.