curl --request POST \
  --url https://api.iotools.cloud/v1/tool/sleep-cycle-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "mode": "wake-from-bedtime",
  "time": "23:00",
  "fallAsleepBuffer": "15"
}
'

{
  "tool": "sleep-cycle-calculator",
  "tool_version": "1.0.1",
  "outputs": {
    "recommendation": "For a recommended 7h 30m of sleep (5 cycles) with a 15-minute fall-asleep buffer, wake up at 06:45 given a bedtime of 23:00.",
    "cycleTable": [
      {
        "time": "00:45",
        "cycles": "1 cycle",
        "sleep-duration": "1h 30m",
        "quality": "Power nap"
      },
      {
        "time": "02:15",
        "cycles": "2 cycles",
        "sleep-duration": "3h 0m",
        "quality": "Short rest"
      },
      {
        "time": "03:45",
        "cycles": "3 cycles",
        "sleep-duration": "4h 30m",
        "quality": "Minimum"
      },
      {
        "time": "05:15",
        "cycles": "4 cycles",
        "sleep-duration": "6h 0m",
        "quality": "Minimum"
      },
      {
        "time": "06:45",
        "cycles": "5 cycles",
        "sleep-duration": "7h 30m",
        "quality": "Recommended"
      },
      {
        "time": "08:15",
        "cycles": "6 cycles",
        "sleep-duration": "9h 0m",
        "quality": "Ideal"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}