WASO
Wake after sleep onset (WASO) refers to periods of wakefulness occurring after defined sleep onset. This parameter measures wakefulness, excluding the wakefulness occurring before sleep onset. WASO time is a better reflection of sleep fragmentation.[1]
Conditions
On monophasic, WASO is a common issue. Those, who often wake up at night, may find polyphasic schedules with a higher segmentation more natural. This includes dual core, tri core schedules, as well as QC0. Other schedules with only short cores and naps, such as E3, are also possible. Nap only schedules can fit in extreme cases as well (e.g. inability to stay asleep for more than ~20 minutes at a time).
On polyphasic, WASO often is a sign of the repartitioning and ongoing adaptation. It is supposed to disappear mostly after being adapted.
Waking up during sleep frequently may be a sign of the low sleep quality, at well as a sign of different sleep disorders, such as sleep apnea.
References
- ↑ Shrivastava D, Jung S, Saadat M, Sirohi R, Crewson K (2014). "How to interpret the results of a sleep study". Journal of Community Hospital Internal Medicine Perspectives. 4 (5). doi:10.3402/jchimp.v4.24983.
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