{
  "id": "sleep.biological",
  "term": "sleep",
  "sense": "biological",
  "pos": "noun",
  "status": "review",
  "level": 11,
  "arena": "everyday",
  "domain": "everyday",
  "style": null,
  "definition": "a state where a body is still and off, and persists through time with less change",
  "folk_gloss": null,
  "emergence": {
    "components": [
      "still.quiet",
      "off.state",
      "persist.continue",
      "body.physical",
      "change.process",
      "state.condition",
      "time.dimension"
    ],
    "interaction": "still.quiet and off.state together allow persist.continue to occur across time.dimension, reducing change.process within a body.physical",
    "novel_properties": [
      "reduced change over time",
      "bodily stillness and disengagement",
      "persistence of condition without activity"
    ]
  },
  "examples": [
    {
      "text": "A hibernating bear in Alaska remains motionless in its den for five months, breathing slowly and not eating.",
      "domain": "biology"
    },
    {
      "text": "The Voyager 1 probe, powered down since 2023, drifts through interstellar space in silent non-operation.",
      "domain": "engineering"
    },
    {
      "text": "During the 2020 pandemic, sleep studies tracked New Yorkers averaging 6.8 hours nightly in locked-down apartments.",
      "domain": "everyday life"
    }
  ],
  "relations": [
    {
      "id": "state.condition",
      "type": "is-a",
      "note": "sleep is a kind of state"
    },
    {
      "id": "active.behavioral",
      "type": "contrasts-with",
      "note": "sleep contrasts with activity"
    }
  ],
  "used_by": [
    "bed.furniture"
  ],
  "forms": [
    "sleep",
    "sleeping",
    "sleeps",
    "slept"
  ],
  "closed": true,
  "provenance": {
    "author": "openrouter:openai/gpt-oss-120b",
    "date": "2026-07-29",
    "confidence": 0.6,
    "reconciled": {
      "by": "openrouter:qwen/qwen3-235b-a22b-2507",
      "date": "2026-07-31",
      "changed": "factual",
      "note": "Definition kept; missing constitutive concepts added to components. Definition previously leaned on unlisted concepts, violating completeness. Now aligned."
    }
  },
  "canonical": "https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-sleep.biological"
}