Sources: health-report-2026-08-04-to-2026-08-05.json (Apple Watch sleep stages, exported 05:43 on 08-05) + OSCAR_Greg_by_Day_2026-08-04.csv (ResMed AirSense/AirFlow 11 via OSCAR). Matched by calendar date of sleep-session start (22:22 on 08-04).
| Metric | Value |
|---|---|
| Bedtime (session start) | 22:22 |
| Time in bed | 7.06 h (423.5 min) |
| Total sleep duration | 6.46 h (387.9 min) |
| Sleep efficiency (TST/TIB) | 91.6% |
| Awake time | 35.6 min — above 7-day (24.7) and 30-day (18.2) averages |
| Core sleep | 4.54 h (272.5 min) — 70.2% |
| Deep sleep | 0.55 h (33.1 min) — 8.5% — 3rd-lowest of 44 matched nights |
| REM sleep | 1.37 h (82.3 min) — 21.2% — below 30-day average (24.6%) |
| CPAP usage | 6.85 h |
| AHI | 3.07 — highest since 07-11, above 7-day (1.74) and 30-day (2.05) averages |
| RDI | 3.21 |
| OA / H / CA / UA / RERA | 14 / 5 / 2 / 0 / 1 — OA count 2nd-highest in two weeks |
| Pressure avg | 7.38 cmH₂O |
| Pressure 90th %ile | 9.14 cmH₂O |
| Leak avg | 0.43 L/min — moderate, below the 7-day average (0.70) |
| Leak 90th %ile | 0.0 L/min (Leak max hit 16.8 briefly but didn't sustain to the 90th-percentile threshold) |
| Date | AHI | OA | H | CA | RERA | Leak avg | Deep % | Awake (min) | Efficiency |
|---|---|---|---|---|---|---|---|---|---|
| 07-28 | 2.01 | 8 | 5 | 0 | 2 | 0.77 | 17.8% | 11.5 | 97.2% |
| 07-29 | 1.62 | 7 | 2 | 1 | 2 | 1.52 | 17.8% | 4.0 | 98.9% |
| 07-30 | 1.98 | 13 | 0 | 1 | 0 | 0.08 | 11.3% | 27.6 | 93.3% |
| 07-31 | 1.51 | 7 | 1 | 4 | 0 | 1.03 | 17.9% | 24.1 | 94.9% |
| 08-01 | 0.58 | 2 | 2 | 1 | 0 | 0.40 | 5.8% | 66.7 | 86.8% |
| 08-02 | 1.16 | 3 | 3 | 1 | 4 | 0.72 | 14.8% | 4.5 | 98.7% |
| 08-03 | 2.24 | 5 | 8 | 3 | 2 | 0.70 | 12.1% | 10.5 | 97.5% |
| 08-04 | 3.07 | 14 | 5 | 2 | 1 | 0.43 | 8.5% | 35.6 | 91.6% |
Split at leak ≤ 0.30 vs > 0.30 L/min (08-04's leak of 0.43 falls into the higher-leak bucket):
the user r (leak avg vs. deep %): −0.24 (n=44). the user r (leak avg vs. awake min): +0.01. the user r (AHI vs. awake min): +0.03. the user r (AHI vs. deep %): +0.03.
Interpretation: Tonight falls in the higher-leak bucket by classification, but its deep% (8.5%) is far below even that bucket's already-lower mean (15.0%) — the leak↔deep% relationship (r = −0.24) only explains a small slice of tonight's shortfall. Historically, AHI has essentially no linear relationship with either awake time or deep% (r ≈ 0.03 for both) across the full dataset, so tonight's simultaneous AHI spike and deep-sleep collapse is more likely two separate things happening on the same night than a demonstrated causal link — worth watching together going forward rather than assuming one drove the other.
| Metric | Tonight (08-04) | 7-day avg (07-29–08-04) | 30-day avg (through 08-04) |
|---|---|---|---|
| AHI | 3.07 | 1.74 | 2.05 |
| Leak avg (L/min) | 0.43 | 0.70 | 0.60 |
| Pressure avg (cmH₂O) | 7.38 | 7.03 | 7.85 |
| Usage hours | 6.85 | 7.12 | 6.77 |
| Deep sleep % | 8.5% | 12.6% | 15.5% |
| REM sleep % | 21.2% | 23.2% | 24.6% |
| Awake time (min) | 35.6 | 24.7 | 18.2 |
AHI, deep sleep %, and awake time are all on the unfavorable side of both trailing averages tonight — the broadest set of simultaneously-unfavorable metrics of any recent night. Leak, pressure, and usage hours remain unremarkable and in line with recent norms.
| Week | AHI avg | Leak avg | n |
|---|---|---|---|
| 06-17 to 06-23 | 1.32 | 0.36 | 4 |
| 06-24 to 06-30 | 3.74 | 1.99 | 7 |
| 07-01 to 07-07 | 2.92 | 1.27 | 6 |
| 07-08 to 07-14 | 2.78 | 0.52 | 7 |
| 07-15 to 07-21 | 1.66 | 0.45 | 6 |
| 07-22 to 07-28 | 1.68 | 0.87 | 7 |
| 07-29 to 08-04 (complete, 7 of 7) | 1.74 | 0.70 | 7 |
The weekly average (1.74) looks unremarkable next to the prior week (1.68) — but that's because the first four nights of this week were low (0.58–2.01) before the sharp climb into tonight. The week-over-week average masks a real acceleration in the back half of the week that the nightly trend table above captures more clearly.
The AHI rise that was flagged as tentative last night is now a confirmed 4-night trend, and tonight's 3.07 is the highest in nearly a month. With OA (not leak) driving the increase, and deep sleep simultaneously hitting a near-record low, this is the most notable pattern in the dataset in several weeks. It's not yet at a level that would typically be considered clinically concerning on its own (AHI < 5 is generally "normal" on therapy), but four consecutive nights of near-doubling AHI plus a sharp deep-sleep drop on the same night as the peak is worth flagging to a sleep clinician or physician if it continues into a 5th or 6th night, or if AHI crosses 5.
No leak, pressure, or compliance issues to report — those all remain within normal recent ranges, reinforcing that tonight's disruption is physiological (more obstructive events) rather than equipment-related.