TrailGenic / Sleep response research
What happened today.
What changed tonight.
Sleepgenic links food, final caloric timing and movement to the following night’s sleep and recovery. The question is which responses repeat—and what the next observation should test.
The longitudinal record
Follow the response record.
Food to Sleep Observation Set — September 2026
22 linked food and activity observations with component-level hypotheses. Repeated grapes, citrus and quinoa show no stable directional signal; apparent pork and late-snack patterns remain confounded.
Read report Field report 02Food-to-Sleep Pilot — September 2026 Interim Report
Ten observed sleep outcomes paired with real-world dinner, meal-timing, alcohol, and activity context. The strongest early signal is an alcohol-associated perturbation, while food-specific and timing-specific conclusions remain premature.
Read report Field report 03Week 12 — July 11–17, 2026
Week 12 recorded a full seven-night recovery rebound after the Triple Summit trip. Overall Score rose to 74.4, Recovery Score to 80.3, REM to 1.21 hours, total sleep to 7.55 hours, resting heart rate improved to 63.1 bpm, Sleep Stress fell to 15.8, and SpO2 returned to 95.4%. HRV remained slightly below baseline at 33.6 ms and restlessness stayed elevated. Sleepgenic classifies Week 12 as systemic rebound with residual autonomic and fragmentation lag.
Read reportSupporting library
Understand the measurements.
Can a Sleep Tracker Detect Sleep Apnea?
Consumer wearables can raise a useful question about sleep-disordered breathing, but they cannot answer it. Sleepgenic separates a wearable flag from a clinical finding and explains when repeated SpO₂, respiration, fragmentation, or daytime-symptom patterns should move from interpretation to professional evaluation.
Read interpretation Interpretation 02Does Hiking Affect Sleep Differently From Walking, Rucking, and Running?
Sleepgenic canonical v1 compares 54 active-stimulus-linked scored nights—14 Walk, 11 Running, 10 Rucking, and 19 Hiking—plus 43 Rest/Recovery reference nights from April 18 through August 14, 2026. Hiking remained associated with longer sleep and the clearest recovery-strain signature, but the pending training-dose join prevents causal or modality-only conclusions.
Read interpretation Interpretation 03How Accurate Are Deep and REM Sleep on Wearables?
Deep and REM values from wearables are estimates inferred from movement and cardiovascular signals rather than direct brain-wave measurement. Sleepgenic explains why stage error is device-specific, why one night should not be overread, and how a stable-device longitudinal baseline makes imperfect stage data useful.
Read interpretationAbout the research
Sleepgenic / The sleep-response lab
Study the night after the day.
We link documented meals, final caloric timing and movement modality to the following night’s sleep and recovery. Repeated observations tell us which responses may be personal, which are uncertain and what to test next.
Explore the current observation set · Read the research method
Current observation set · 4–27 September 2026
22 dinner-to-sleep links; 21 nights with detailed sleep and recovery metrics; 21 scored nights; 20 recorded bedtimes. Missing values remain missing. The former sleep-only workbook remains a historical baseline and archive.
What we measure
Each observation follows context → food and activity exposure → sleep response → overnight recovery → repeated comparison → next decision. We retain the source record, mark uncertain meal identifications and preserve conflicting nights. Garmin scores and stages are instrument outputs, not independent health outcomes.
What the first 22 observations can say
Sleep duration is the clearest recurring constraint: 17 of 21 detailed nights were under seven recorded hours. The food layer is beginning to narrow the field without producing a winner: grapes, citrus and quinoa-containing meals all span both stronger and weaker nights, while a superficially lower pork average disappears when two heavily confounded nights are removed. Late mooncake exposures also provide counterexamples to a simple “late sweet = bad sleep” rule. These are hypotheses and negative results, not diet recommendations. See the food observations →
How this fits TrailGenic
TrailGenic studies movement, physiology and adaptation across time. Sleepgenic studies the overnight response to everyday behavior in the same human-response system. See current and historical reports. The wearable interpretation library remains available as supporting education.