| Metric | Value |
|---|---|
| Sleep start | 2026-09-09 23:22:44-05:00 |
| Time in bed | 381.3 min (6h 21.3m) |
| Total sleep | 378.8 min (6h 18.8m) |
| Sleep efficiency | 99.3% |
| Awake time | 2.5 min |
| Core (N1+N2) sleep | 211.7 min / 55.89% |
| Deep (N3) sleep | 57.2 min / 15.10% |
| REM | 109.9 min / 29.01% |
| CPAP usage hours | 6.42 |
| Session count | 1 |
| AHI | 1.40 |
| RDI | 1.56 |
| Obstructive apneas (OA) | 7 |
| Hypopneas (H) | 1 |
| Central apneas (CA) | 1 |
| Unclassified apneas (UA) | 0 |
| RERA | 1 |
| Pressure avg | 7.68 cmHâ‚‚O |
| Pressure min | 4.00 cmHâ‚‚O |
| Pressure 90th | 10.52 cmHâ‚‚O |
| Pressure max | 11.56 cmHâ‚‚O |
| Leak avg | 0.63 L/min |
| Leak 90th | 1.2 L/min |
| Leak max | 13.2 L/min |
| Flow-limit p95 | 0.11 |
| Flow-limit p99 | 0.23 |
| Flow-limit min >0.10 | 20.5 |
| Flow-limit min >0.20 | 4.8 |
| Metric | Tonight | 7-day avg | Δ vs 7d | 30-day avg | Δ vs 30d |
|---|---|---|---|---|---|
| AHI | 1.40 | 2.09 | -33% | 1.92 | -27% |
| OA count | 7 | 9.71 | -28% | 9.40 | -26% |
| H count | 1 | 3.29 | -70% | 2.57 | -61% |
| CA count | 1 | 0.43 | +133% | 0.73 | +37% |
| Leak_Avg (L/min) | 0.63 | 0.94 | -33% | 0.75 | -16% |
| Leak_90th (L/min) | 1.2 | 2.74 | -56% | 2.12 | -43% |
| Pressure_Avg | 7.68 | 7.37 | +4% | 7.52 | +2% |
| Pressure_90th | 10.52 | 9.85 | +7% | 10.06 | +5% |
| Usage hours | 6.42 | 6.41 | 0% | 6.57 | -2% |
| FL min >0.10 | 20.5 | 15.91 | +29% | 18.38 | +12% |
| FL min >0.20 | 4.8 | 3.46 | +39% | 4.00 | +20% |
| Deep sleep % | 15.10 | 12.80 | +2.3 pp | 13.36 | +1.7 pp |
| REM % | 29.01 | 21.73 | +7.3 pp | 23.75 | +5.3 pp |
| Awake min | 2.5 | 10.75 | -77% | 11.83 | -79% |
| Total sleep (min) | 379 | 370 | +2% | 380 | 0% |
| Metric | Recent 7d (09/03–09/09) | Prior 7d (08/27–09/02) | Direction |
|---|---|---|---|
| AHI | 2.15 | 2.18 | → -1.1% |
| OA count | 10.00 | 10.86 | ↓ -7.9% |
| H count | 3.29 | 2.29 | ↑ +43.8% |
| CA count | 0.57 | 1.29 | ↓ -55.6% |
| Leak_Avg | 0.90 | 0.83 | ↑ +8.8% |
| Leak_90 | 2.57 | 2.91 | ↓ -11.8% |
| Pressure_Avg | 7.37 | 7.59 | → -2.8% |
| Pressure_90 | 9.94 | 10.11 | → -1.7% |
Notable: the hypopnea WoW acceleration flagged on 09-07 and 09-08 is still there (+43.8%) — tonight's single hypopnea is helpful but doesn't undo the week's picture. AHI level is essentially flat WoW, but the event mix keeps shifting.
| Date | AHI | OA | H | CA | Leak_Avg | Leak_90 | P_Avg | Hours | Deep% | Awake min |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-09-09 | 1.40 | 7 | 1 | 1 | 0.63 | 1.2 | 7.68 | 6.42 | 15.10 | 2.5 |
| 2026-09-08 | 2.25 | 9 | 5 | 0 | 1.12 | 3.6 | 7.38 | 6.23 | 7.85 | 11.0 |
| 2026-09-07 | 1.85 | 9 | 2 | 1 | 1.21 | 3.6 | 7.23 | 6.48 | 8.05 | 13.0 |
| 2026-09-06 | 1.40 | 7 | 1 | 1 | 0.27 | 0.0 | 6.72 | 6.45 | 17.64 | 10.0 |
| 2026-09-05 | 2.66 | 11 | 5 | 1 | 0.79 | 2.4 | 7.59 | 6.38 | 5.35 | 13.5 |
| 2026-09-04 | 3.37 | 16 | 5 | 0 | 0.31 | 0.0 | 7.37 | 6.23 | 14.66 | 6.5 |
| 2026-09-03 | 2.15 | 11 | 4 | 0 | 1.98 | 7.2 | 7.65 | 6.97 | 15.66 | 15.6 |
| 2026-09-02 | 0.98 | 5 | 1 | 0 | 0.87 | 2.4 | 7.64 | 6.12 | 20.37 | 5.5 |
| 2026-09-01 | 1.82 | 8 | 4 | 0 | 0.91 | 2.4 | 7.60 | 6.58 | 20.53 | 8.0 |
| 2026-08-31 | 2.49 | 14 | 0 | 2 | 0.27 | 1.2 | 7.96 | 6.43 | 20.28 | 11.5 |
| Pair | the user r |
|---|---|
| AHI ↔ Deep sleep % | +0.10 (none) |
| AHI ↔ Awake minutes | +0.06 (none) |
| Leak_Avg ↔ Deep sleep % | -0.19 (weak negative) |
| Leak_Avg ↔ Awake minutes | -0.03 (none) |
| Leak_90th ↔ Deep sleep % | -0.23 (weak negative) |
| Leak_90th ↔ Awake minutes | -0.03 (none) |
High- vs low-leak bucket comparison (split at Leak_Avg median = 0.79 L/min):
Directional: low-leak nights average 1.5 pp more deep sleep. Tonight sat in the low-leak bucket (Leak_Avg 0.63 < 0.79 median), and deep sleep at 15.10% is -0.3 pp below the low-leak bucket mean — very close to what leak alone would predict for a low-leak night. Consistent with the leak-improvement / architecture-improvement pairing.
Recovery night. The four-day deep-sleep suppression pattern (which had crossed yesterday's "three of four" trigger threshold) did not extend to a fifth night. Deep 15.10% is back above the 30d baseline. REM 29.01% is not just back to baseline — it's a recent-window high. Awake time 2.5 min is at the low extreme of Watch data. On paper this is one of the best sleep-architecture nights in the recent record.
The device may have driven the recovery. Pressure_Avg 7.68 and Pressure_90 10.52 are both the highest values in the recent 10-night set. The AutoSet has been responding to the accumulated flow-limit signal all week, and tonight it pushed harder — the pressure escalation coincided with AHI dropping to 1.40 (-27% vs baseline) and hypopneas dropping to 1 (down from 5 last night). Higher pressure suppressed events. But note: FL exposure went UP (Min_Above_010 20.5, second-highest in the 10-night window; FL_p95 back at 0.11). So the pressure is preventing events without fully preventing flow limitation. The underlying airway physiology hasn't changed; the device is just working harder.
Leak resolved without intervention. Two nights of Leak_90 = 3.6 turned into a single night of Leak_90 = 1.2. The "act soon" leak flag from yesterday can be de-escalated — this was a transient issue, not a durable mask-fit failure. Leak_Avg 0.63 is below baseline. Interestingly, better leak + higher pressure is an unusual combination (higher pressure usually stresses the seal more) — one hypothesis is that the user slept in a different position tonight (or shifted less), reducing mask displacement.
The FL story is the one still pointing sideways. Even with events suppressed and leak resolved, Min_Above_010 hit 20.5 min tonight — nearly matching the recent high. Over the last 7 days, Min_Above_010 has averaged 15.91 (+29% vs recent avg). FL_p99 0.23 and FL_max 0.50 are both recent highs. The device is compensating with pressure, but the underlying airway is doing more narrowing work than it was a month ago. This isn't a crisis — AHI is well-controlled — but it's the signal that would need to change if the user wanted to see FL-linked disruption resolve rather than get pressure-managed.
CA=1 continues. Now 4 of last 9 nights with ≥ 1 central apnea. Still low absolute counts, still not clinically concerning, but the persistence is real. Recent 7d CA avg 0.43 vs prior 7d 1.29 (-55.6% WoW), so the direction is favorable — just not zero.
Awake time of 2.5 min bears a caveat. Efficiency at 99.3% is high enough that measurement uncertainty starts to matter. The Watch typically reports 5–15 min of awake time; 2.5 min is at the low tail. If the user subjectively felt he was awake more than a couple of minutes overnight, the Watch may have under-detected some brief arousals. That said, low awake time is directionally consistent with the improved deep+REM percentages and reduced fragmentation.
Total sleep 6h 19m is close to the 7d and 30d averages — no window story tonight.
Watch items updated: - Deep-sleep suppression — flag DE-ESCALATED. Tonight broke the pattern (15.10% vs 30d 13.36%). Continue to watch, but the four-day trend appears interrupted. - REM % — flag DE-ESCALATED. 29.01% is a recent-window high. Yesterday's newly-flagged REM concern didn't materialize. - Leak — flag DE-ESCALATED. Leak_Avg 0.63 and Leak_90 1.2 are back below baseline after two elevated nights. - FL exposure — flag PERSISTS. 20.5 min above 0.10 tonight, FL_p95 back at 0.11 threshold. Even with pressure escalation, the airway signal isn't quiet. This is the flag most worth continued attention. - Pressure escalation — new watch item. Pressure_Avg and Pressure_90 both at 10-night highs. Not a problem by itself — AutoSet is doing its job — but if pressure keeps drifting up (Pressure_90 has moved from a 09-06 low of 9.44 to tonight's 10.52 in three days), that's the mechanism by which FL is being managed. If Pressure_90 approaches 11.5+ (the ceiling of tonight's max), that would warrant a settings review. - Hypopnea WoW. Still +43.8% recent vs prior 7d, though tonight's single hypopnea helps. Track another few nights. - CA count. 4 of last 9 nights with ≥ 1 CA. Continue monitoring.
Subjectively: This should feel like a good sleep. Deep + REM both strong, near-zero awake time, 6h 19m of total sleep. If the user woke up feeling rested this morning, the data supports that. If he didn't, the low awake time deserves a second look (see caveats).