| Metric | Value |
|---|---|
| Sleep start | 2026-09-04 23:19:16-05:00 |
| Time in bed | 369.3 min (6h 9m) |
| Total sleep | 362.8 min (6h 3m) |
| Sleep efficiency | 98.2% |
| Awake time | 6.5 min |
| Core (N1+N2) sleep | 228.3 min / 62.9% |
| Deep (N3) sleep | 53.2 min / 14.7% |
| REM | 81.3 min / 22.4% |
| CPAP usage hours | 6.23 |
| Session count | 1 |
| AHI | 3.37 |
| RDI | 3.37 |
| Obstructive apneas (OA) | 16 |
| Hypopneas (H) | 5 |
| Central apneas (CA) | 0 |
| Unclassified apneas (UA) | 0 |
| RERA | 0 |
| Pressure avg | 7.37 cmHâ‚‚O |
| Pressure min | 4.00 cmHâ‚‚O |
| Pressure 90th | 10.22 cmHâ‚‚O |
| Pressure max | 11.56 cmHâ‚‚O |
| Leak avg | 0.31 L/min |
| Leak 90th | 0.0 L/min |
| Leak max | 28.8 L/min |
| Flow-limit p95 | 0.07 |
| Flow-limit min >0.10 | 11.4 |
| Flow-limit min >0.20 | 2.4 |
| Metric | Tonight | 7-day avg | Δ vs 7d | 30-day avg | Δ vs 30d |
|---|---|---|---|---|---|
| AHI | 3.37 | 2.03 | +66% | 1.93 | +75% |
| OA count | 16 | 10.43 | +53% | 9.03 | +77% |
| H count | 5 | 2.29 | +118% | 3.00 | +67% |
| CA count | 0 | 0.86 | -100% | 0.90 | -100% |
| Leak_Avg (L/min) | 0.31 | 0.99 | -69% | 0.87 | -64% |
| Leak_90th (L/min) | 0.0 | 3.43 | -100% | 2.68 | -100% |
| Pressure_Avg | 7.37 | 7.59 | -3% | 7.53 | -2% |
| Pressure_90th | 10.22 | 10.04 | +2% | 10.10 | +1% |
| Usage hours | 6.23 | 6.64 | -6% | 6.66 | -6% |
| Deep sleep % | 14.7 | 15.88 | -1.2 pp | 13.63 | +1.1 pp |
| REM % | 22.4 | 24.16 | -1.8 pp | 24.01 | -1.6 pp |
| Awake min | 6.5 | 8.32 | -22% | 12.86 | -49% |
| Total sleep (min) | 363 | 382.57 | -5% | 382.52 | -5% |
| Metric | Recent 7d (08/29—09/04) | Prior 7d (08/22—08/28) | Direction |
|---|---|---|---|
| AHI | 2.17 | 1.81 | ↑ +19.8% |
| OA count | 11.00 | 8.57 | ↑ +28.3% |
| H count | 2.86 | 2.14 | ↑ +33.3% |
| CA count | 0.43 | 1.29 | ↓ -66.7% |
| Leak_Avg | 1.00 | 0.66 | ↑ +51.4% |
| Leak_90th | 3.43 | 1.37 | ↑ +150.0% |
| Pressure_Avg | 7.78 | 7.14 | ↑ +8.9% |
| Pressure_90th | 10.23 | 9.62 | ↑ +6.4% |
| Deep sleep % | 16.04 | 12.83 | ↑ +25.0% |
| REM % | 23.84 | 25.80 | ↓ -7.6% |
| Date | AHI | OA | H | CA | Leak_Avg | Leak_90th | P_Avg | Hours |
|---|---|---|---|---|---|---|---|---|
| 2026-09-04 | 3.37 | 16 | 5 | 0 | 0.31 | 0.0 | 7.37 | 6.23 |
| 2026-09-03 | 2.15 | 11 | 4 | 0 | 1.98 | 7.2 | 7.65 | 6.97 |
| 2026-09-02 | 0.98 | 5 | 1 | 0 | 0.87 | 2.4 | 7.64 | 6.12 |
| 2026-09-01 | 1.82 | 8 | 4 | 0 | 0.91 | 2.4 | 7.60 | 6.58 |
| 2026-08-31 | 2.49 | 14 | 0 | 2 | 0.27 | 1.2 | 7.96 | 6.43 |
| 2026-08-30 | 1.29 | 8 | 0 | 1 | 1.71 | 7.2 | 8.00 | 6.98 |
| 2026-08-29 | 3.07 | 15 | 6 | 0 | 0.93 | 3.6 | 8.23 | 6.85 |
| 2026-08-28 | 2.43 | 12 | 1 | 3 | 0.28 | 0.0 | 6.08 | 6.58 |
| 2026-08-27 | 3.17 | 14 | 4 | 3 | 0.83 | 3.6 | 7.59 | 6.63 |
| 2026-08-26 | 1.33 | 7 | 1 | 1 | 0.72 | 0.0 | 7.09 | 6.77 |
| Pair | the user r |
|---|---|
| AHI ↔ Deep sleep % | +0.12 (none) |
| AHI ↔ Awake minutes | +0.04 (none) |
| Leak_Avg ↔ Deep sleep % | -0.20 (weak negative) |
| Leak_Avg ↔ Awake minutes | -0.05 (none) |
| Leak_90th ↔ Deep sleep % | -0.23 (weak negative) |
| Leak_90th ↔ Awake minutes | -0.05 (none) |
High- vs low-leak bucket comparison (split at Leak_Avg median = 0.77 L/min):
Directional: low-leak nights average 0.6 pp more deep sleep. The "leak drags deep sleep down" signal is consistent but weak. Tonight sat firmly in the low-leak bucket (Leak_Avg 0.31) yet deep sleep was 14.7% — right at the high-leak mean — because tonight's story is obstructive events, not mask fit.
Two things swapped tonight. The leak flag from 09-03 (Leak_Avg 1.98, Leak_90th 7.2) closed decisively — tonight came in at Leak_Avg 0.31 with Leak_90th at 0.0, well below the user's 30d baseline. Whatever the cause (position, cushion shift, brief unseal), it did not persist. But as the leak resolved, obstructive events surged: AHI 3.37 — the highest of the last 10 nights and above the personal mean+1sd threshold of 3.23 — driven by 16 OA (30d avg 9.03) plus 5 hypopneas. Zero centrals. The event mix is purely obstructive, and it's the biggest obstructive-event count of the recent window.
Pressure_Avg 7.37 was actually 3% below the 7-day trailing (7.59) and 2% below the 30-day (7.53), and Pressure_90th 10.22 was flat. So the device wasn't ramping into these events aggressively — it may be that the events came in a short cluster the pressure ride-through didn't fully catch, or that sleep position drove obstructive resistance the algorithm handled with modest pressure adjustments. Flow-limit exposure was moderate (11.4 min above FL 0.10, 2.4 min above 0.20) — lower than 09-03's 17.1 / 2.9 min despite the higher AHI, so upstream airway restriction isn't the whole story.
Sleep architecture was mixed: efficiency 98.2% (excellent) and awake only 6.5 min — the lowest of the week — so subjectively this probably felt like a solid night. Deep sleep 14.7% is +1.1 pp above 30d but -1.2 pp below the recent 7d average. REM 22.4% is -1.8 pp vs 30d and -1.8 pp vs 7d. Total sleep 6h 3m is ~20 min shorter than the trailing average, mostly because CPAP usage was down to 6.23 hours (lowest of the recent 10-night window).
The week-over-week picture keeps pointing up on obstructive events: recent 7d AHI 2.17 vs prior 7d 1.81 (+20%), OA 11.00 vs 8.57 (+28%), H 2.86 vs 2.14 (+33%). Tonight is now the second night in the recent window at or above the AHI mean+1sd threshold (08-29 at 3.07 was near it; 08-27 at 3.17 was over). Not a streak yet, but the trend is clear.
Watch items rolling forward: - Any AHI ≥ 3.23 for 3 consecutive nights (currently 1: tonight). - Continued 7d obstructive-event upward drift into next week (this is now week 2 of increases). - Confirm 09-03's leak spike stays a one-off; another Leak_Avg ≥ 1.93 night would suggest a mask/cushion issue.
Subjectively: Should have felt fine — 98.2% efficiency, 6.5 min awake, deep sleep held above baseline. The obstructive spike happened without waking the user up, which is a testament to the CPAP holding the airway open enough to prevent arousal even when events counted.