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date, type, tags
date type tags
2026-08-29 sleep
sleep
recovery
sick
late-bedtime
low-rem

Sleep — 2026-08-29

7h 49min · 02:14→10:06 · REM: 7% · Deep: 29% · HRV: 106 · Resting HR: 52 · Score: 85/100

Sick-week sleep. Bedtime 02:14 is the latest in recent logs, but the night ran long (7h 49min) into a 10:06 rise — the "sick schedule" pattern (late to bed, late up, no alarm). HRV at 106ms sits just under his excellent sober baseline (110135ms) — the signature of the body still clearing the week-long cold, not of alcohol (no drinking involved). Resting HR 52 is mid-range (4858), mildly elevated vs the 4449 seen on clean nights — consistent with residual inflammation.

Architecture is the one flag: REM at 7% (37 min) — the second consecutive sub-10% REM night in the pattern (5% on Aug 12, 7% now) — while light sleep inflated to 64% (High, ref <55%). The watch flagged it: "REM a little low; insufficient REM can affect your mental state." Illness is a known REM suppressor (fever, congestion, coughing disrupt sleep micro-architecture), and the 02:14 bedtime pushes REM into the morning hours where the watch detects it worst. Neither cause is a habit problem — this is a sick-week artifact, not a pattern to fix.

Everything else held: deep sleep 29% (normal), deep continuity 78 pts, breathing quality 98 pts, woke once, SpO2 97%, respiratory rate 14 brpm. Score 85/100, better than 94% of users — the watch called the night "good" overall.

Context for the afternoon run: same-day 13:38 run, first after 14 days off. The 106ms HRV + 52 resting HR predict the elevated run HR (157 avg, 29 min anaerobic at 7'08" pace) — the run data and the sleep data tell the same story: body recovering from illness, not broken.

Details

Metric Value Reference
Night sleep 7h 49min 6-10h
Bed → Rise 02:14 → 10:06
Deep sleep 29% (2h 14min) 20-60%
Light sleep 64% (4h 58min) <55% (High)
REM sleep 7% (37 min) 10-30% (Low)
Deep continuity 78 points 70-100
Times woke 1 0-1
Breathing quality 98 points 70-100
HRV 106ms 76-136ms (Within range)
Resting HR 52 bpm 48-58 bpm (Within range)
SpO2 97% 96-99%
Respiratory rate 14 brpm 12-16 brpm
Score 85 / 100 Better than 94%

HRV progression

Date HRV Context
Jul 29 140ms Light dose, all-time high
Aug 9 29ms 🔴 5am drinking night — all-time low
Aug 10 139ms Recovery night after, above range
Aug 11 118ms Sober, late-ish bedtime
Aug 12 112ms Sober, 4th clean night, low REM
Aug 29 106ms Sick week, late bedtime (02:14), low REM

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