Sleep & CPAP Report — 2026-09-22
🚩 Flags
- AHI 3.20 — vs 30d avg 2.10 (+52.7%). 7d avg 2.20 (+45.4%). OA 12 vs 7d avg 9.86. H 7 vs 7d avg 3.57. CA 0. RERA 0.
- Leak_90 2.40 L/min — vs 30d avg 2.08 (+15.4%). Leak_Avg 1.03 (7d 0.67); Leak_Max 36.00 (7d 14.06).
- Sleep architecture: Deep% 15.33 (+26.6% vs 7d, +17.4% vs 30d); REM% 23.07 (-6.0% vs 7d, -5.1% vs 30d); Awake 4.01 min (-66.5% vs 7d, -58.0% vs 30d); Efficiency 98.85%.
- Time in bed 347.7 min (5h 47.7m) — vs 30d 384.2 (-9.5%). Total sleep 343.7 min. CPAP usage 5.93h.
Summary Table — Night of 2026-09-22
| Metric |
Value |
| Sleep start |
2026-09-22T23:41:53-05:00 |
| Time in bed |
347.7 min (5h 47.7m) |
| Total sleep |
343.7 min (5h 43.7m) |
| Sleep efficiency |
98.85% |
| Awake time |
4.01 min |
| Core (N1+N2) sleep |
211.75 min / 61.61% |
| Deep (N3) sleep |
52.69 min / 15.33% |
| REM |
79.28 min / 23.07% |
| CPAP usage hours |
5.93 |
| Session count |
1 |
| AHI |
3.20 |
| RDI |
3.20 |
| Obstructive apneas (OA) |
12 |
| Hypopneas (H) |
7 |
| Central apneas (CA) |
0 |
| Unclassified apneas (UA) |
0 |
| RERA |
0 |
| Pressure_Avg |
7.49 |
| Pressure_Min |
4.00 |
| Pressure_Max |
12.00 |
| Pressure_90th |
10.32 |
| Leak_Avg |
1.03 |
| Leak_Max |
36.0 |
| Leak_90th |
2.40 |
| FL_Avg |
0.0154 |
| FL_P95 |
0.10 |
| FL_Max |
0.34 |
| Min_Above_005 |
36.1 |
| Min_Above_010 |
14.8 |
| Min_Above_020 |
3.1 |
| Frac_NonZero (FL samples) |
25.91% |
Comparison to Trailing Averages
| Metric |
Tonight |
7d avg |
30d avg |
Δ vs 7d |
Δ vs 30d |
| AHI |
3.20 |
2.20 |
2.10 |
+45.4% |
+52.7% |
| OA count |
12.00 |
9.86 |
9.93 |
+21.7% |
+20.8% |
| H count |
7.00 |
3.57 |
2.67 |
+96.0% |
+162.5% |
| CA count |
0.00 |
1.00 |
1.00 |
-100.0% |
-100.0% |
| RERA count |
0.00 |
0.43 |
0.77 |
-100.0% |
-100.0% |
| Pressure_Avg |
7.49 |
7.55 |
7.40 |
-0.8% |
+1.2% |
| Pressure_90 |
10.32 |
9.87 |
9.88 |
+4.5% |
+4.4% |
| Leak_Avg |
1.03 |
0.67 |
0.74 |
+53.7% |
+39.8% |
| Leak_Max |
36.00 |
14.06 |
16.80 |
+156.1% |
+114.3% |
| Leak_90th |
2.40 |
1.71 |
2.08 |
+40.0% |
+15.4% |
| Usage hours |
5.93 |
6.55 |
6.50 |
-9.4% |
-8.8% |
| FL_P95 |
0.100 |
0.097 |
0.092 |
+2.9% |
+8.3% |
| Min_Above_010 |
14.80 |
17.81 |
16.48 |
-16.9% |
-10.2% |
| Min_Above_020 |
3.10 |
3.99 |
3.71 |
-22.2% |
-16.4% |
| Awake min |
4.01 |
11.97 |
9.57 |
-66.5% |
-58.0% |
| TIB min |
347.73 |
388.60 |
384.21 |
-10.5% |
-9.5% |
| Total sleep min |
343.72 |
376.63 |
374.65 |
-8.7% |
-8.3% |
| Deep % |
15.33 |
12.11 |
13.06 |
+26.6% |
+17.4% |
| REM % |
23.07 |
24.53 |
24.31 |
-6.0% |
-5.1% |
| Core % |
61.61 |
63.35 |
62.63 |
-2.8% |
-1.6% |
Week-over-Week Deltas (recent 7d 2026-09-16–2026-09-22 vs prior 7d 2026-09-09–2026-09-15)
| Metric |
Recent 7d |
Prior 7d |
Δ |
Δ % |
| AHI |
2.383 |
2.131 |
+0.251 |
+11.8% |
| OA |
10.143 |
10.571 |
-0.429 |
-4.1% |
| CA |
1.000 |
1.143 |
-0.143 |
-12.5% |
| Pressure_Avg |
7.509 |
7.361 |
+0.147 |
+2.0% |
| Leak_Avg |
0.711 |
0.559 |
+0.153 |
+27.4% |
| Leak_90 |
1.714 |
1.371 |
+0.343 |
+25.0% |
| Deep % (Apple) |
12.49 |
13.21 |
-0.712 |
-5.4% |
| REM % (Apple) |
24.31 |
23.70 |
+0.610 |
+2.6% |
| Awake min (Apple) |
11.33 |
8.46 |
+2.867 |
+33.9% |
| Sleep min (Apple) |
374.19 |
359.99 |
+14.200 |
+3.9% |
| FL_P95 |
0.094 |
0.091 |
+0.003 |
+3.1% |
| Min_Above_010 |
16.900 |
15.414 |
+1.486 |
+9.6% |
| Min_Above_020 |
3.443 |
4.443 |
-1.000 |
-22.5% |
Recent 10-Night Context
| Date |
AHI |
OA |
CA |
PAvg |
P90 |
LAvg |
LMax |
L90 |
FL_P95 |
MinAbv010 |
MinAbv020 |
Deep% |
REM% |
Awake |
| 2026-09-13 |
2.60 |
14 |
1 |
7.78 |
10.16 |
0.47 |
18.00 |
0.00 |
0.11 |
19.1 |
7.6 |
8.29 |
20.78 |
18.06 |
| 2026-09-14 |
2.55 |
12 |
2 |
7.43 |
10.26 |
0.86 |
27.60 |
4.80 |
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 |
14.40 |
2.40 |
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 |
8.40 |
0.00 |
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 |
10.80 |
1.20 |
0.07 |
12.0 |
3.3 |
18.64 |
20.41 |
20.07 |
| 2026-09-18 |
0.87 |
5 |
0 |
7.07 |
9.56 |
0.18 |
8.40 |
0.00 |
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 |
14.40 |
1.20 |
0.10 |
16.8 |
2.1 |
10.83 |
25.42 |
14.55 |
| 2026-09-20 |
2.18 |
7 |
0 |
8.21 |
10.54 |
1.85 |
27.60 |
6.00 |
0.13 |
28.6 |
7.0 |
8.70 |
31.40 |
14.55 |
| 2026-09-21 |
1.94 |
5 |
1 |
7.82 |
10.46 |
0.90 |
14.40 |
1.20 |
0.09 |
16.2 |
2.9 |
13.07 |
23.78 |
5.52 |
| 2026-09-22 |
3.20 |
12 |
0 |
7.49 |
10.32 |
1.03 |
36.00 |
2.40 |
0.10 |
14.8 |
3.1 |
15.33 |
23.07 |
4.01 |
CPAP → Sleep-Stage Correlations (all 96 matched nights)
Correlations computed across full available history (2026-06-17 → 2026-09-22).
| Pair |
the user r |
Interpretation |
| AHI vs deep_pct |
-0.027 |
negligible |
| AHI vs awake_min |
+0.055 |
negligible |
| OA vs awake_min |
+0.098 |
negligible |
| CA vs deep_pct |
-0.023 |
negligible |
| Leak_Avg vs deep_pct |
-0.153 |
weak negative |
| Leak_90th vs deep_pct |
-0.163 |
weak negative |
| Leak_Max vs awake_min |
+0.068 |
negligible |
| FL_P95 vs awake_min |
-0.066 |
negligible |
| Min_Above_010 vs deep_pct |
+0.048 |
negligible |
Bucket comparison (Leak_90 median split, median = 1.2):
- Low-leak nights (n=47): mean deep% 15.16, awake 14.70 min
- High-leak nights (n=43): mean deep% 14.11, awake 13.55 min
- Δ (high – low): deep% -1.06 pp, awake -1.15 min
Caveats
- Sleep session started at 2026-09-22T23:41:53-05:00 — matched to the 2026-09-22 CPAP file. Nights where the Apple Watch session begins after midnight are attributed to the previous CPAP calendar date.
- 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 96. 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.