Sleep & CPAP Report — 2026-09-16
🚩 Flags
- AHI 2.85 — elevated vs 30d avg 2.04 (+39.7%). 7d avg 2.13 (+33.7%). OA count 16 vs 7d avg 10.57. H count 2 vs 7d avg 1.57. CA count 4. RERA count 1.
- Leak_90 0.00 L/min — below baseline vs 30d avg 2.12 (-100.0%). Leak_Avg 0.09 (7d 0.56); Leak_Max 8.4 (7d 17.0).
- Sleep architecture: Deep% 9.37 (-33.2% vs 7d, -29.7% vs 30d); REM% 22.95 (-5.1% vs 7d, -4.0% vs 30d); Awake 10.04 min (+46.4% vs 7d, +14.0% vs 30d); Efficiency 97.71%.
- Time in bed 438.6 min (7h 18.6m) — long vs 30d 384.9 (+13.9%). Total sleep 428.5 min. CPAP usage 7.72h.
Summary Table — Night of 2026-09-16
| Metric |
Value |
| Sleep start |
2026-09-16T22:22:58-06:00 |
| Time in bed |
438.6 min (7h 18.6m) |
| Total sleep |
428.5 min (7h 8.5m) |
| Sleep efficiency |
97.71% |
| Awake time |
10.04 min |
| Core (N1+N2) sleep |
290.0 min / 67.68% |
| Deep (N3) sleep |
40.14 min / 9.37% |
| REM |
98.35 min / 22.95% |
| CPAP usage hours |
7.72 |
| Session count |
1 |
| AHI |
2.85 |
| RDI |
2.98 |
| Obstructive apneas (OA) |
16 |
| Hypopneas (H) |
2 |
| Central apneas (CA) |
4 |
| Unclassified apneas (UA) |
0 |
| RERA |
1 |
| Pressure_Avg |
7.20 |
| Pressure_Min |
4.00 |
| Pressure_Max |
10.84 |
| Pressure_90th |
9.68 |
| Leak_Avg |
0.09 |
| Leak_Max |
8.4 |
| Leak_90th |
0.0 |
| FL_Avg |
0.0142 |
| FL_P95 |
0.08 |
| FL_Max |
0.37 |
| Min_Above_005 |
40.6 |
| Min_Above_010 |
13.5 |
| Min_Above_020 |
2.8 |
| Frac_NonZero (FL samples) |
29.63% |
Comparison to Trailing Averages
| Metric |
Tonight |
7d avg |
30d avg |
Δ vs 7d |
Δ vs 30d |
| AHI |
2.85 |
2.13 |
2.04 |
+33.7% |
+39.7% |
| OA count |
16.00 |
10.57 |
9.93 |
+51.4% |
+61.1% |
| H count |
2.00 |
1.57 |
2.53 |
+27.3% |
-21.1% |
| CA count |
4.00 |
1.14 |
0.83 |
+250.0% |
+380.0% |
| RERA count |
1.00 |
0.71 |
0.80 |
+40.0% |
+25.0% |
| Pressure_Avg |
7.20 |
7.36 |
7.46 |
-2.2% |
-3.4% |
| Pressure_90 |
9.68 |
9.96 |
10.01 |
-2.8% |
-3.3% |
| Leak_Avg |
0.09 |
0.56 |
0.80 |
-83.9% |
-88.8% |
| Leak_Max |
8.40 |
16.97 |
17.88 |
-50.5% |
-53.0% |
| Leak_90th |
0.00 |
1.37 |
2.12 |
-100.0% |
-100.0% |
| Usage hours |
7.72 |
6.26 |
6.51 |
+23.3% |
+18.6% |
| FL_P95 |
0.080 |
0.091 |
0.098 |
-12.5% |
-18.4% |
| Min_Above_010 |
13.50 |
15.41 |
17.72 |
-12.4% |
-23.8% |
| Min_Above_020 |
2.80 |
4.44 |
4.26 |
-37.0% |
-34.2% |
| Awake min |
10.04 |
6.86 |
8.81 |
+46.4% |
+14.0% |
| TIB min |
438.58 |
369.31 |
384.91 |
+18.8% |
+13.9% |
| Total sleep min |
428.54 |
362.45 |
376.11 |
+18.2% |
+13.9% |
| Deep % |
9.37 |
14.03 |
13.33 |
-33.2% |
-29.7% |
| REM % |
22.95 |
24.19 |
23.92 |
-5.1% |
-4.0% |
| Core % |
67.68 |
61.79 |
62.75 |
+9.5% |
+7.9% |
Week-over-Week Deltas (recent 7d 2026-09-10–2026-09-16 vs prior 7d 2026-09-03–2026-09-09)
| Metric |
Recent 7d |
Prior 7d |
Δ |
Δ % |
| AHI |
2.339 |
2.154 |
+0.184 |
+8.6% |
| OA |
11.857 |
10.000 |
+1.857 |
+18.6% |
| CA |
1.571 |
0.571 |
+1.000 |
+175.0% |
| Pressure_Avg |
7.293 |
7.374 |
-0.081 |
-1.1% |
| Leak_Avg |
0.481 |
0.901 |
-0.420 |
-46.6% |
| Leak_90 |
1.200 |
2.571 |
-1.371 |
-53.3% |
| Deep % (Apple) |
13.07 |
12.05 |
+1.03 |
+8.5% |
| REM % (Apple) |
23.18 |
23.10 |
+0.08 |
+0.3% |
| Awake min (Apple) |
8.11 |
10.32 |
-2.21 |
-21.4% |
| Sleep min (Apple) |
370.74 |
372.75 |
-2.01 |
-0.5% |
| FL_P95 |
0.087 |
0.096 |
-0.009 |
-9.0% |
| Min_Above_010 |
14.414 |
17.071 |
-2.657 |
-15.6% |
| Min_Above_020 |
4.157 |
3.886 |
+0.271 |
+7.0% |
Recent 10-Night Context
| Date |
AHI |
OA |
CA |
PAvg |
P90 |
LAvg |
LMax |
L90 |
FL_P95 |
MinAbv010 |
MinAbv020 |
Deep% |
REM% |
Awake |
| 2026-09-07 |
1.85 |
9 |
1 |
7.23 |
10.40 |
1.21 |
21.6 |
3.6 |
0.11 |
21.3 |
2.2 |
8.05 |
22.47 |
13.05 |
| 2026-09-08 |
2.25 |
9 |
0 |
7.38 |
9.34 |
1.12 |
18.0 |
3.6 |
0.09 |
15.0 |
3.7 |
7.85 |
19.22 |
11.04 |
| 2026-09-09 |
1.40 |
7 |
1 |
7.68 |
10.52 |
0.63 |
13.2 |
1.2 |
0.11 |
20.5 |
4.8 |
15.10 |
29.01 |
2.51 |
| 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 |
CPAP → Sleep-Stage Correlations (all 74 matched nights)
Correlations computed across full available history (2026-06-23 → 2026-09-16).
| Pair |
the user r |
Interpretation |
| AHI vs deep_pct |
+0.106 |
weak positive |
| AHI vs awake_min |
+0.032 |
negligible |
| OA vs awake_min |
+0.053 |
negligible |
| CA vs deep_pct |
+0.069 |
negligible |
| Leak_Avg vs deep_pct |
-0.150 |
weak negative |
| Leak_90th vs deep_pct |
-0.188 |
weak negative |
| Leak_Max vs awake_min |
+0.068 |
negligible |
| FL_P95 vs awake_min |
-0.094 |
negligible |
| Min_Above_010 vs deep_pct |
-0.033 |
negligible |
Bucket comparison (Leak_90 median split, median = 2.4):
- Low-leak nights (n=36): mean deep% 15.19, awake 14.76 min
- High-leak nights (n=38): mean deep% 13.84, awake 13.98 min
- Δ (high – low): deep% -1.36 pp, awake -0.78 min
Caveats
- Sleep session started at 2026-09-16T22:22:58-06:00 — matched to the 2026-09-16 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 74. 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.