Daily Report — 2026-08-27

Sleep & CPAP Report — 2026-08-27

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Summary Table — Night of 2026-08-27

Metric Value
Sleep start 22:39:56 CDT
Time in bed 391.4 min (6h 31m)
Total sleep 383.8 min (6h 24m)
Sleep efficiency 98.1%
Awake time 7.5 min
Core (N1+N2) sleep 234.3 min / 61.0%
Deep (N3) sleep 42.7 min / 11.1%
REM 106.9 min / 27.8%
CPAP usage hours 6.63
Session count 1
AHI 3.17
RDI 3.47
Obstructive apneas (OA) 14
Hypopneas (H) 4
Central apneas (CA) 3
Unclassified apneas (UA) 0
RERA 2
Pressure avg 7.59 cmHâ‚‚O
Pressure 90th 9.86 cmHâ‚‚O
Pressure max 10.68 cmHâ‚‚O
Leak avg 0.83 L/min
Leak 90th 3.6 L/min
Leak max 18 L/min

Trailing Averages Comparison

Metric Tonight 7-day avg Δ vs 7d 30-day avg Δ vs 30d
AHI 3.17 1.78 +78% 1.75 +81%
OA count 14 9.0 +56% 8.0 +75%
Leak_Avg (L/min) 0.83 0.63 +32% 0.81 +3%
Leak_90th (L/min) 3.6 1.03 +250% 2.44 +48%
Pressure_Avg 7.59 7.40 +3% 7.43 +2%
Pressure_90th 9.86 9.98 −1% 9.93 −1%
Usage hours 6.63 6.75 −2% 6.73 −1%
Deep sleep % 11.1% 12.4% −1.3 pp 14.0% −2.9 pp
REM % 27.8% 24.9% +2.9 pp 24.0% +3.8 pp
Awake min 7.5 9.5 −21% 15.8 −52%
Total sleep (min) 383.8 389.3 −1% 383.3 0%

Week-over-Week Trend

Metric Recent 7d (Aug 21–27) Prior 7d (Aug 14–20) Direction
AHI 1.78 1.50 ↑ +19%
OA count 9.0 8.3 ↑ +8%
Leak_Avg 0.63 0.84 ↓ −25%

AHI has ticked up modestly week-over-week; leak has actually improved. Tonight's spike is the main driver of the recent-week's higher mean.

Correlation Analysis (56 matched nights)

Pair the user r
AHI ↔ Deep sleep % +0.17 (weak positive)
AHI ↔ Awake minutes −0.02 (none)
Leak_Avg ↔ Deep sleep % −0.10 (weak negative)
Leak_Avg ↔ Awake minutes −0.11 (weak negative)
Leak_90th ↔ Deep sleep % −0.13 (weak negative)
Leak_90th ↔ Awake minutes −0.10 (none)

High- vs low-leak bucket comparison (split at Leak_90th median = 1.2 L/min): - High-leak nights (n=24): mean deep sleep 15.5%, awake 14.7 min - Low-leak nights (n=27): mean deep sleep 16.1%, awake 16.6 min

Directional differences are small and inconsistent — leak level does not appear to be a strong driver of sleep-stage disruption in your data. Tonight's low deep sleep is not leak-explained.

Interpretation

Tonight was a respiratory-events outlier, not a leak or usage problem. Everything about the mask fit (leak in the noise), pressure delivery (both avg and 90th unchanged), and usage duration (6.63h, in line) was normal. What changed is that OSCAR flagged 14 obstructive apneas and 3 centrals — driving AHI to 3.17, above your typical range but still under the clinical treatment threshold of 5.

Sleep architecture reflected that: deep sleep dropped ~3 pp below the 30-day baseline, though REM stayed strong and awake time was actually your lowest in weeks. The picture is consistent with events clustering in specific stages (often supine REM) rather than fragmenting sleep globally. Worth watching for two things over the next few nights: 1. Whether the elevated OA count persists (a 3-night streak above 12 OAs would suggest a pattern — e.g., positional change, congestion, alcohol, weight fluctuation). 2. Whether deep sleep recovers as OA count returns to baseline.

Caveats

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