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2026-08-09 sleep
sleep
alcohol
short-sleep
hrv-low

Sleep — 2026-08-09

4h 33min · 05:12→09:45 · REM: 24% · Deep: 29% · HRV: 29ms 🔴 · Resting HR: 72 bpm · Score: 74/100

The 5am drinking night (Sat night → Sun morning). Bed at 05:12, up at 09:45 — 4h33min, less than half the reference range. HRV at 29ms is the lowest ever recorded — by a wide margin (previous worst: 71ms on the Jul 8 heavy drinking night). Resting HR at 72 bpm is 23 bpm above the 48-59 personal range. This is the classic alcohol-hangover cardiovascular signature: sympathetic overdrive, body still processing the night's intake through the measured window.

Paradoxically, the sleep structure for the hours logged was normal: REM 24% (1h 5min), deep 29% (1h 20min), light 47%, 0 wake-ups, breathing quality 100, SpO2 98%. The body packed a structurally fine 4.5h — there just wasn't nearly enough of it, and the cardiovascular system was clearly hammered (HRV 29ms, HR 72).

Score 74 / better than 33% — the watch called it below-average, and the HRV/HR pair is the loudest warning signal in Gutca's entire sleep history. This is what a 5am drinking night costs.

Details

Metric Value Reference
Night sleep 4h 33min 6-10h (Below average)
Bed → Rise 05:12 → 09:45
Deep sleep 29% (1h 20min) 20-60%
Light sleep 47% (2h 8min) <55%
REM sleep 24% (1h 5min) 10-30%
Deep continuity 80 points 70-100
Times woke 0 0-1
Breathing quality 100 points 70-100
HRV 29ms 🔴 77-135ms (Far below range)
Resting HR 72 bpm 🔴 48-59 bpm (Above range)
SpO2 98% 96-99%
Respiratory rate 16 brpm 12-16 brpm
Score 74 / 100 Better than 33%

HRV progression

Date HRV Context
Jul 5 135ms Sober, clean night
Jul 20 107ms Heavy weed
Jul 23 111ms Post-fröccs
Jul 27 135ms First sober night post-festival
Jul 29 140ms Light dose, all-time high
Aug 9 29ms 🔴 5am drinking night — all-time low
Aug 10 139ms Recovery night after

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