{
  "url": "https://dantelabs.com/traits/episodic-hypersomnia",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "episodic-hypersomnia",
    "id": "HP:0007200",
    "name": "Episodic hypersomnia",
    "definition": "Recurrent episodes of hypersomnia (sleeping 16 or more hours a day) over a period of days or weeks.",
    "synonyms": [
      "Idiopathic hypersomnia",
      "Recurrent hypersomnia"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-nervous-system",
        "name": "Abnormality of the nervous system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-nervous-system"
      }
    ],
    "broader": [
      {
        "slug": "excessive-daytime-somnolence",
        "name": "Excessive daytime sleepiness",
        "url": "https://dantelabs.com/traits/excessive-daytime-somnolence"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "trank1",
        "symbol": "TRANK1",
        "hgnc": "HGNC:29011",
        "name": "tetratricopeptide repeat and ankyrin repeat containing 1",
        "frequency": "very-frequent",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/trank1"
      }
    ]
  }
}