Sleep Feature

We leverage sleep-related features from RAPIDS-Fitbit-Sleep, including high-level summary features (total duration of being asleep or in bed), and low-level features about the statistics (count, mean, max, min) of episodes of being asleep, restless, and awake during the sleep.

Feature Name	Unit	Description
`countepisode[LEVEL][TYPE]`	episodes	Number of `[LEVEL][TYPE]` sleep episodes. `[LEVEL]` is one of awake and asleep and `[TYPE]` is one of main, nap, and all. Same below.
`sumduration[LEVEL][TYPE]`	minutes	Total duration of all `[LEVEL][TYPE]` sleep episodes.
`maxduration[LEVEL][TYPE]`	minutes	Longest duration of any `[LEVEL][TYPE]` sleep episode.
`minduration[LEVEL][TYPE]`	minutes	Shortest duration of any `[LEVEL][TYPE]` sleep episode.
`avgduration[LEVEL][TYPE]`	minutes	Average duration of all `[LEVEL][TYPE]` sleep episodes.
`medianduration[LEVEL][TYPE]`	minutes	Median duration of all `[LEVEL][TYPE]` sleep episodes.
`stdduration[LEVEL][TYPE]`	minutes	Standard deviation duration of all `[LEVEL][TYPE]` sleep episodes.
`firstwaketimeTYPE`	minutes	First wake time for a certain sleep type during a time segment. Wake time is number of minutes after midnight of a sleep episode’s end time.
`lastwaketimeTYPE`	minutes	Last wake time for a certain sleep type during a time segment. Wake time is number of minutes after midnight of a sleep episode’s end time.
`firstbedtimeTYPE`	minutes	First bedtime for a certain sleep type during a time segment. Bedtime is number of minutes after midnight of a sleep episode’s start time.
`lastbedtimeTYPE`	minutes	Last bedtime for a certain sleep type during a time segment. Bedtime is number of minutes after midnight of a sleep episode’s start time.
`countepisodeTYPE`	episodes	Number of sleep episodes for a certain sleep type during a time segment.
`avgefficiencyTYPE`	scores	Average sleep efficiency for a certain sleep type during a time segment.
`sumdurationafterwakeupTYPE`	minutes	Total duration the user stayed in bed after waking up for a certain sleep type during a time segment.
`sumdurationasleepTYPE`	minutes	Total sleep duration for a certain sleep type during a time segment.
`sumdurationawakeTYPE`	minutes	Total duration the user stayed awake but still in bed for a certain sleep type during a time segment.
`sumdurationtofallasleepTYPE`	minutes	Total duration the user spent to fall asleep for a certain sleep type during a time segment.
`sumdurationinbedTYPE`	minutes	Total duration the user stayed in bed (sumdurationtofallasleep + sumdurationawake + sumdurationasleep + sumdurationafterwakeup) for a certain sleep type during a time segment.
`avgdurationafterwakeupTYPE`	minutes	Average duration the user stayed in bed after waking up for a certain sleep type during a time segment.
`avgdurationasleepTYPE`	minutes	Average sleep duration for a certain sleep type during a time segment.
`avgdurationawakeTYPE`	minutes	Average duration the user stayed awake but still in bed for a certain sleep type during a time segment.
`avgdurationtofallasleepTYPE`	minutes	Average duration the user spent to fall asleep for a certain sleep type during a time segment.
`avgdurationinbedTYPE`	minutes	Average duration the user stayed in bed (`sumdurationtofallasleep` + `sumdurationawake` + `sumdurationasleep` + `sumdurationafterwakeup`) for a certain sleep type during a time segment.