Sleep stages individual values total not matching total sleep value

[plenar]

We are using v1.2 API and we have found that Sleep stages individual values added does not match the Total Sleep value provided in API response. Following is an example:

{
  "sleep": [
    {
      "dateOfSleep": "2017-07-29",
      "duration": 9000000,
      "efficiency": 89,
      "endTime": "2017-07-29T23:30:00.000",
      "infoCode": 2,
      "isMainSleep": true,
      "levels": {
        "data": [
          {
            "dateTime": "2017-07-29T21:00:00.000",
            "level": "asleep",
            "seconds": 7860
          },
          {
            "dateTime": "2017-07-29T23:11:00.000",
            "level": "restless",
            "seconds": 120
          },
          {
            "dateTime": "2017-07-29T23:13:00.000",
            "level": "awake",
            "seconds": 660
          },
          {
            "dateTime": "2017-07-29T23:24:00.000",
            "level": "restless",
            "seconds": 240
          },
          {
            "dateTime": "2017-07-29T23:28:00.000",
            "level": "asleep",
            "seconds": 60
          },
          {
            "dateTime": "2017-07-29T23:29:00.000",
            "level": "restless",
            "seconds": 60
          }
        ],
        "summary": {
          "asleep": {
            "count": 0,
            "minutes": 132
          },
          "awake": {
            "count": 1,
            "minutes": 11
          },
          "restless": {
            "count": 3,
            "minutes": 7
          }
        }
      },
      "logId": 15346188572,
      "minutesAfterWakeup": 1,
      "minutesAsleep": 132,
      "minutesAwake": 17,
      "minutesToFallAsleep": 0,
      "startTime": "2017-07-29T21:00:00.000",
      "timeInBed": 150,
      "type": "classic"
    }
  ],
  "summary": {
    "stages": {
      "deep": 80,
      "light": 246,
      "rem": 87,
      "wake": 49
    },
    "totalMinutesAsleep": 132,
    "totalSleepRecords": 1,
    "totalTimeInBed": 150
  }
}

Here deep + light + rem from summary does not match with totalMinutesAsleep 

[ErnestoR · Accepted solution]

For one thing, the data you have there is not sleep stages. In your example, you'll see that you have: 

"type": "classic"

This indicates that for that sleep record, sleep stages were not available. This is most likely due to the fact that the total time for the sleep record (totalTimeInBed) was < 3 hours (150min). In the Sleep Stages help page, it states:

 Your tracker needs at least 3 hours of sleep data to estimate your sleep stages, so you won’t see sleep stages for shorter naps.

[powerturtle]

I just had a poor night's sleep and the Fitbit Restless total was 1 hour 1 min (61 mins). I had a severe insomnia last night and just looked at the blocks of restlessness for time periods and they started with a 31 min, then a period of awake, then 37 min, + more. That was already 68 mins restless in the first 1.5 hours. I have a screen shot of it, but i don't know how to attach that. There are a whole night of short restless periods after this as well. I think i got to 79 mins before 7am. Actually, the awake figure of 17 mins for the night was correct. Does Fitbit top out at 1 hour 1 min? Your thread was the closest thing i could find. Sorry if i have sent this to the wrong person. I know Fitbit is not a diagnostic tool. Sometimes it's more like a toy. Anyway, i don't have too many complaints or problems. I have had the watch for a few years and this is my first comment.