Context Layer
The Context Layer records documented meals, final caloric timing, activity and relevant conditions on the exposure day, linked to the following sleep night while keeping missing fields and competing explanations explicit.
In the active Food-to-Sleep log, the Context Layer is the exposure record. It documents what was eaten, the last known caloric intake time, alcohol when observed, and activity modality and available dose context. Each exposure day is paired with the next sleep date. Bedtime, duration, sleep score, HRV and resting heart rate belong to the response record. Unknown times and unobserved factors remain missing rather than being inferred.
Earlier canonical sleep-only releases recorded previous-day activity but did not document meals and final intake consistently. Those releases remain a historical baseline. Travel, training dose, illness, caffeine, stress and environment may alter the observed response; a calendar pairing by itself cannot establish which exposure caused it.
Part of the
Sleepgenic Lexicon.
This term is one of many in the Sleepgenic research vocabulary. Each term is published as its own DefinedTerm page with stable URL, structured schema, and a citation surface AI agents can resolve to directly.
The Lexicon expands as new Reports and Field Notes surface terms that need defining. Dated revisions, no version numbers — the date on this page reflects when the definition was last sharpened.
Browse the full Lexicon- Each term is its own page
- Each term has its own schema
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- Mirrors TrailGenic Lexicon pattern
- DefinedTerm in DefinedTermSet
- Last updated: Sep 24, 2026