Sleep & CPAP Report — 2026-08-07
🚩 Flags
- AHI 1.69 — on trend vs 30d avg 1.76 (-3.8%). 7d avg 1.84 (-8.2%). OA count 8 vs 7d avg 7.00. H count 2 vs 7d avg 3.57. CA count 1. RERA count 1.
- Leak_90 3.60 L/min — above baseline vs 30d avg 1.98 (+81.6%). Leak_Avg 1.20 (7d 0.82); Leak_Max 20.4 (7d 18.5).
- Sleep architecture: Deep% 20.53 (+66.4% vs 7d, +37.5% vs 30d); REM% 31.47 (+38.7% vs 7d, +31.0% vs 30d); Awake 6.52 min (-71.7% vs 7d, -64.8% vs 30d); Efficiency 98.30%.
- Time in bed 382.9 min (6h 22.9m) — on trend vs 30d 399.0 (-4.1%). Total sleep 376.3 min. CPAP usage 6.50h.
Summary Table — Night of 2026-08-07
| Metric |
Value |
| Sleep start |
2026-08-08T00:16:33-05:00 |
| Time in bed |
382.9 min (6h 22.9m) |
| Total sleep |
376.3 min (6h 16.3m) |
| Sleep efficiency |
98.30% |
| Awake time |
6.52 min |
| Core (N1+N2) sleep |
180.6 min / 48.00% |
| Deep (N3) sleep |
77.27 min / 20.53% |
| REM |
118.42 min / 31.47% |
| CPAP usage hours |
6.50 |
| Session count |
1 |
| AHI |
1.69 |
| RDI |
1.85 |
| Obstructive apneas (OA) |
8 |
| Hypopneas (H) |
2 |
| Central apneas (CA) |
1 |
| Unclassified apneas (UA) |
0 |
| RERA |
1 |
| Pressure_Avg |
7.39 |
| Pressure_Min |
4.00 |
| Pressure_Max |
10.96 |
| Pressure_90th |
9.66 |
| Leak_Avg |
1.20 |
| Leak_Max |
20.4 |
| Leak_90th |
3.60 |
| FL_Avg |
0.0135 |
| FL_P95 |
0.09 |
| FL_Max |
0.48 |
| Min_Above_005 |
30.7 |
| Min_Above_010 |
14.3 |
| Min_Above_020 |
4.1 |
| Frac_NonZero (FL samples) |
22.00% |
Comparison to Trailing Averages
| Metric |
Tonight |
7d avg |
30d avg |
Δ vs 7d |
Δ vs 30d |
| AHI |
1.69 |
1.84 |
1.76 |
-8.2% |
-3.8% |
| OA count |
8.00 |
7.00 |
7.83 |
+14.3% |
+2.2% |
| H count |
2.00 |
3.57 |
2.78 |
-44.0% |
-28.1% |
| CA count |
1.00 |
2.00 |
1.04 |
-50.0% |
-4.2% |
| RERA count |
1.00 |
1.14 |
0.83 |
-12.5% |
+21.1% |
| Pressure_Avg |
7.39 |
7.26 |
7.56 |
+1.9% |
-2.3% |
| Pressure_90 |
9.66 |
9.72 |
10.13 |
-0.6% |
-4.6% |
| Leak_Avg |
1.20 |
0.82 |
0.71 |
+46.3% |
+68.4% |
| Leak_Max |
20.40 |
18.51 |
19.10 |
+10.2% |
+6.8% |
| Leak_90th |
3.60 |
2.91 |
1.98 |
+23.5% |
+81.6% |
| Usage hours |
6.50 |
7.04 |
6.75 |
-7.7% |
-3.7% |
| FL_P95 |
0.090 |
0.101 |
0.122 |
-11.3% |
-26.0% |
| Min_Above_010 |
14.30 |
19.53 |
27.35 |
-26.8% |
-47.7% |
| Min_Above_020 |
4.10 |
5.26 |
6.98 |
-22.0% |
-41.3% |
| Awake min |
6.52 |
23.08 |
18.55 |
-71.7% |
-64.8% |
| TIB min |
382.85 |
417.84 |
399.02 |
-8.4% |
-4.1% |
| Total sleep min |
376.33 |
394.76 |
380.47 |
-4.7% |
-1.1% |
| Deep % |
20.53 |
12.34 |
14.93 |
+66.4% |
+37.5% |
| REM % |
31.47 |
22.69 |
24.03 |
+38.7% |
+31.0% |
| Core % |
48.00 |
64.97 |
61.04 |
-26.1% |
-21.4% |
Week-over-Week Deltas (recent 7d 2026-08-01–2026-08-07 vs prior 7d 2026-07-25–2026-07-31)
| Metric |
Recent 7d |
Prior 7d |
Δ |
Δ % |
| AHI |
1.866 |
1.669 |
0.197 |
+11.8% |
| OA |
7.143 |
8.286 |
-1.143 |
-13.8% |
| CA |
1.571 |
1.000 |
0.571 |
+57.1% |
| Pressure_Avg |
7.314 |
7.159 |
0.156 |
+2.2% |
| Leak_Avg |
0.844 |
0.953 |
-0.109 |
-11.4% |
| Leak_90 |
2.914 |
3.086 |
-0.171 |
-5.6% |
| Deep % (Apple) |
12.71 |
15.28 |
-2.57 |
-16.8% |
| REM % (Apple) |
22.81 |
26.07 |
-3.26 |
-12.5% |
| Awake min (Apple) |
20.57 |
18.57 |
2.01 |
+10.8% |
| Sleep min (Apple) |
384.87 |
383.57 |
1.30 |
+0.3% |
| FL_P95 |
0.103 |
0.081 |
0.021 |
+26.3% |
| Min_Above_010 |
18.914 |
13.871 |
5.043 |
+36.4% |
| Min_Above_020 |
5.100 |
2.943 |
2.157 |
+73.3% |
Recent 10-Night Context
| Date |
AHI |
OA |
CA |
PAvg |
P90 |
LAvg |
LMax |
L90 |
FL_P95 |
MinAbv010 |
MinAbv020 |
Deep% |
REM% |
Awake |
| 2026-07-29 |
1.62 |
7 |
1 |
6.63 |
8.68 |
1.52 |
25.2 |
6.00 |
0.07 |
8.1 |
3.1 |
17.84 |
26.40 |
4.01 |
| 2026-07-30 |
1.98 |
13 |
1 |
7.35 |
9.06 |
0.08 |
9.6 |
0.00 |
0.08 |
12.3 |
1.2 |
11.27 |
19.82 |
27.60 |
| 2026-07-31 |
1.51 |
7 |
4 |
6.98 |
9.42 |
1.03 |
20.4 |
3.60 |
0.08 |
18.6 |
5.2 |
17.91 |
30.63 |
24.08 |
| 2026-08-01 |
0.58 |
2 |
1 |
6.33 |
8.14 |
0.40 |
18.0 |
2.40 |
0.08 |
15.6 |
2.0 |
5.82 |
10.60 |
66.74 |
| 2026-08-02 |
1.16 |
3 |
1 |
7.80 |
10.30 |
0.72 |
14.4 |
1.20 |
0.11 |
18.4 |
5.1 |
14.78 |
27.40 |
4.52 |
| 2026-08-03 |
2.24 |
5 |
3 |
6.73 |
10.14 |
0.70 |
20.4 |
3.60 |
0.14 |
30.2 |
12.1 |
12.09 |
26.25 |
10.54 |
| 2026-08-04 |
3.07 |
14 |
2 |
7.38 |
9.14 |
0.43 |
16.8 |
0.00 |
0.08 |
12.5 |
2.4 |
8.54 |
21.22 |
35.63 |
| 2026-08-05 |
1.49 |
7 |
1 |
7.97 |
10.58 |
1.90 |
27.6 |
7.20 |
0.11 |
21.7 |
3.0 |
11.33 |
23.31 |
10.54 |
| 2026-08-06 |
2.83 |
11 |
2 |
7.60 |
10.34 |
0.56 |
12.0 |
2.40 |
0.11 |
19.7 |
7.0 |
15.91 |
19.42 |
9.53 |
| 2026-08-07 |
1.69 |
8 |
1 |
7.39 |
9.66 |
1.20 |
20.4 |
3.60 |
0.09 |
14.3 |
4.1 |
20.53 |
31.47 |
6.52 |
CPAP → Sleep-Stage Correlations (all 37 matched nights)
Correlations computed across full available history (2026-06-23 → 2026-08-07).
| Pair |
the user r |
Interpretation |
| AHI vs deep_pct |
+0.090 |
negligible |
| AHI vs awake_min |
+0.023 |
negligible |
| OA vs awake_min |
+0.053 |
negligible |
| CA vs deep_pct |
+0.126 |
weak positive |
| Leak_Avg vs deep_pct |
-0.216 |
weak negative |
| Leak_90th vs deep_pct |
-0.220 |
weak negative |
| Leak_Max vs awake_min |
+0.021 |
negligible |
| FL_P95 vs awake_min |
-0.278 |
weak negative |
| Min_Above_010 vs deep_pct |
+0.048 |
negligible |
Bucket comparison (Leak_90 median split, median = 2.4):
- Low-leak nights (n=15): mean deep% 16.53, awake 18.13 min
- High-leak nights (n=22): mean deep% 15.64, awake 17.08 min
- Δ (high – low): deep% -0.89 pp, awake -1.05 min
Caveats
- Sleep session started at 2026-08-08T00:16:33-05:00 — matched to the 2026-08-07 CPAP file. Nights where the Apple Watch session begins after midnight (e.g. 00:12) are now attributed to the previous CPAP calendar date; for daily health-export files, the filename's first date is used as the authoritative night key.
- 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 37. 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.