Changes

== Mechanism ==

== Mechanism ==

Biphasic schedules have been naturally used by humanity over the centuries<ref>Ekirch AR. [https://academic.oup.com/sleep/article/39/3/715/2454050 Segmented Sleep in Preindustrial Societies]. ''Sleep''. 2016;39(3):715-716. doi:[https://doi.org/10.5665/sleep.5558 10.5665/sleep.5558]</ref>. Their mechanism is mostly not the same, and only high total sleep time is a similar feature. Less reduction is possible because of the [[wake time reduction]] mechanism, as biphasic schedules have only two blocks of sleep, which is not enough to sleep much less than on [[monophasic]] sleep. The maximum possible reduction is usually around 1-3 hours. All the biphasic schedules also belong other polyphasic schedules categories.

Biphasic schedules have been naturally used by humanity over the centuries<ref name="Ekirch2016" />. Their mechanism is mostly not the same, and only high total sleep time is a similar feature. Less reduction is possible because of the [[wake time reduction]] mechanism, as biphasic schedules have only two blocks of sleep, which is not enough to sleep much less than on [[monophasic]] sleep. The maximum possible reduction is usually around 1-3 hours. All the biphasic schedules also belong other polyphasic schedules categories.

== Biphasic schedules ==

== Biphasic schedules ==

=== BiphasicX ===

=== BiphasicX ===

[[File:BiphasicX.png|thumb|A possible BiphasicX variant]]

[[File:BiphasicX.png|thumb|A possible BiphasicX variant]]

[[BiphasicX]] is a flexible [[non-reducing]] biphasic sleep schedule, which consists of two blocks of sleep of any length. This schedule can combine all the other biphasic schedules. Usually it takes form of a non-reducing E1 / Siesta, having a long core at night and a short nap / core midday. However, a Segmented-oriented variant is also possible.

[[BiphasicX]] is a flexible [[non-reducing]] biphasic sleep schedule, which consists of two blocks of sleep of any length. This schedule can combine all the other biphasic schedules. Usually it takes form of a non-reducing E1 / Siesta, having a long core at night and a short nap / core midday. However, a Segmented-oriented variant is also possible.

== References ==

== References ==

<references />

<ref name="Ekirch2016">{{cite journal |last=Ekirch |first=AR. |date=2016 |title=Segmented Sleep in Preindustrial Societies |url=https://academic.oup.com/sleep/article/39/3/715/2454050 |journal=Sleep |volume=39 |issue=3 |pages=715-716| doi=10.5665/sleep.5558}}</ref>

{{TNT|Polyphasic Sleep Schedules}}

{{TNT|Polyphasic Sleep Schedules}}

[[Category:Schedules]]

[[Category:Schedules]]