Data Plan

1. Basic (2-Stage) Sleep Analysis

The Essential (2-Stage) Sleep Analysis feature allows you to review the following sleep data:

Data NameDefinition
sleep_stagesA list of numbers, indicating sleep stages during time_in_bed
(0: Wake / 1: Sleep)
start_timeExact time at which the tracking started
end_timeExact time at which the tracking ended.
time_in_bedThe time duration between the start and the end of tracking
sleep_timeExact time at which ‘Sleep’ was first detected since the tracking started
wake_timeExact time at which the last 'Wake' period was detected during tracking. No sleep will be detected after wake_time
time_in_sleep_periodThe time duration between the onset of ‘Sleep’ and the start of the last ‘Wake’ during tracking
sleep_latencyThe time duration between the start of tracking and the detection of first 'Sleep'
wakeup_latencyThe time duration between the start of the last 'Wake' and the end of tracking
time_in_sleepThe actual time spent sleeping. It is the time duration calculated after subtracting all ‘Wake’ time from time_in_bed
sleep_efficiencyThe ratio of time_in_sleep to time_in_bed
waso_countThe number of ‘Wake’ detected during time_in_sleep_period
longest_wasoThe longest time duration of ‘Wake’ during time_in_sleep_period
time_in_wakeThe sum of all ‘Wake’ seconds detected during time_in_sleep_period
sleep_ratioRatio of time_in_sleep to time_in_sleep_period
wake_ratioRatio of time_in_wake to time_in_sleep_period

2. 4 Sleep Stages Analysis

The Advanced (4-Stage) Sleep Analysis feature allows you to additionally review the following sleep data in addition to the basic (2-Stage) sleep analysis data:

Data NameDefinition
sleep_stagesA list of numbers, indicating sleep stages during time_in_bed
(0: Wake / 1: Light / 2: Deep / 3: REM)
time_in_lightThe sum of all ‘Light’ seconds detected during time_in_sleep_period
time_in_deepThe sum of all ‘Deep’ seconds detected during time_in_sleep_period
time_in_remThe sum of all ‘REM’ seconds detected during time_in_sleep_period
light_ratioRatio of time_in_light to time_in_sleep_period
deep_ratioRatio of time_in_deep to time_in_sleep_period
rem_ratioRatio of time_in_rem to time_in_sleep_period
light_latencyThe time duration between sleep_time to the first detection of ‘Light’
(Normally, '0' as light sleep is the first sleep stage to be detected)
deep_latencyThe time duration between sleep_time to the first detection of ‘Deep’
rem_latencyThe time duration between sleep_time to the first detection of ‘REM’
sleep_cycleThe average time duration of sleep cycles. Each sleep cycle is consisted of both 'REM' and 'Non-REM' sleep.
sleep_cycle_countThe number of sleep cycles detected during the time_in_sleep_period
sleep_cycle_timeA list of the exact start and end times of each sleep cycle

3. Breathing Analysis

The Respiratory Instability Analysis feature allows you to review the following sleep data:

Data NameDefinition
breath_stagesA list of breath stages during the time_in_bed (0: Stable / 1: Unstable)
time_in_unstable_breathThe time duration, of which unstable breath is detected during time_in_sleep_period
time_in_stable_breathThe time duration, of which stable breath is detected during time_in_sleep_period
unstable_breath_ratioThe ratio of time_in_unstable_breath to time_in_sleep_period
stable_breath_ratioThe of time_in_stable_breath to time_in_sleep_period
breathing_indexThe numbers indicating the level of breathing instability
breathing_patternA list of names indicating the level of breathing instability:
'Stable', 'Slightly Unstable', 'Unstable', 'Severely Unstable’
unstable_breath_countThe number of times unstable breath is detected during the time_in_sleep_period

4. Real-time Sleep Analysis

By utilizing the Real-time Sleep Analysis feature, you can monitor the following data in real-time:

Data NameDefinition
sleep_stagesA list of numbers, indicating sleep stages during time_in_bed
breath_stagesA list of breath stages during the time_in_bed (0: Stable / 1: Unstable)