{
    "proposals": [
        {
            "join_class": "category",
            "column": "bedtime_screentime_sleep_debt.gender",
            "kind": "external_candidate",
            "entry_id": null,
            "name": "BLS American Time Use Survey, average time spent sleeping by sex and age group",
            "probable_url": "https://www.bls.gov/tus/",
            "license_expectation": "US federal government work, expected to be public domain",
            "join_story": "Joining on gender, and on age bands if they are derived, would put a national population benchmark for sleep time next to each group's recorded sleep hours. That shows whether this sample sleeps more or less than comparable people in general.",
            "teaches": "Whether your sleep totals reflect the bedtime phone habits in your data or just ordinary differences between demographic groups."
        }
    ]
}