[
    {
        "heart_rate": {
            "value": 70,
            "unit": "beats/min"
        },
        "effective_time_frame": {
            "date_time": "2023-11-20T07:25:00-08:00"
        },
        "temporal_relationship_to_sleep": "on waking"
    },
    {
        "heart_rate": {
            "value": 65,
            "unit": "beats/min"
        },
        "effective_time_frame": {
            "time_interval": {
                "duration": {
                    "value": 10,
                    "unit": "min"
                },
                "end_date_time": "2023-12-20T08:00:00-02:00"
            }
        },
        "temporal_relationship_to_sleep": "on waking"
    },
    {
        "heart_rate": {
            "value": 35,
            "unit": "beats/min"
        },
        "effective_time_frame": {
            "time_interval": {
                "duration": {
                    "value": 10,
                    "unit": "min"
                },
                "end_date_time": "2023-12-20T02:00:00-02:00"
            }
        },
        "descriptive_statistic": "average",
        "temporal_relationship_to_sleep": "during sleep"
    }
]
