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A '''non-reducing''' schedule is a schedule does not significantly reduce total sleep time compared to a one's [[Special:MyLanguage/monophasic|monophasic]] baseline. Having little sleep reduction, these schedules offer other advantages. Compared to monophasic, these schedules offer continuous refreshment throughout the day and helps maintain high alertness. Compared to reducing schedules, they offer flexibility from the very beginning and a very mild adaptation.

A '''non-reducing''' schedule is a schedule does not significantly reduce total sleep time compared to a one's [[Special:MyLanguage/monophasic|monophasic]] baseline. Having little sleep reduction, these schedules offer other advantages. Compared to monophasic, these schedules offer continuous refreshment throughout the day and helps maintain high alertness. Compared to reducing schedules, they offer flexibility from the very beginning and a very mild adaptation.

== Biphasic schedules ==

== Biphasic schedules ==

Biphasic sleep has been widely used historically, including [[Special:MyLanguage/Segmented|Segmented]] and schedules falling in between [[Special:MyLanguage/E1|E1]] and [[Special:MyLanguage/Siesta|Siesta]], in which which is supplied with a short [[Special:MyLanguage/Naps|nap]] / [[Special:MyLanguage/Cores|core]] midday. However, all of the schedules practiced are believed to not be strictly timed, as the clock is a recent invention. It is also believed that these schedules have been non-reducing, which allows this form of flexibility and resilience.  

Biphasic sleep has been widely used historically, including [[Special:MyLanguage/Segmented|Segmented]] and schedules falling in between [[Special:MyLanguage/E1|E1]] and [[Special:MyLanguage/Siesta|Siesta]], in which which is supplied with a short [[Special:MyLanguage/Naps|nap]] / [[Special:MyLanguage/Cores|core]] midday. However, all of the schedules practiced are believed to not be strictly timed, as the clock is a recent invention. It is also believed that these schedules have been non-reducing, which allows this form of flexibility and resilience.  

=== E1 ===

=== E1 ===

Recently, there has been more success of this variant in teenagers, as a safe and easy way to start polyphasic sleeping and learn napping. This can serve as a groundwork to more easily adapt to a reducing schedule later. Compared to a non-reducing Siesta, the short daytime nap is very easy to schedule around meal times and social events, and is usually short enough to avoid being interrupted by daytime activities.

Recently, there has been more success of this variant in teenagers, as a safe and easy way to start polyphasic sleeping and learn napping. This can serve as a groundwork to more easily adapt to a reducing schedule later. Compared to a non-reducing Siesta, the short daytime nap is very easy to schedule around meal times and social events, and is usually short enough to avoid being interrupted by daytime activities.

=== Siesta ===

=== Siesta ===

[[File:Non-reducing Siesta.png|right|thumb|A non-reducing Siesta variant]]

[[File:Non-reducing Siesta.png|right|thumb|A non-reducing Siesta variant]]

Under a non-reducing schedule, it can be natural to wake up after 60m on [[Special:MyLanguage/Siesta|Siesta]]. The mechanism of this schedule likely resembles that of non-reducing E1. Without [[Special:MyLanguage/repartitioning|repartitioning]], all sleep cycles follow the regular order of NREM1, NREM2, SWS, NREM2 and finally REM sleep. Since little vital sleep has been removed, the body naturally wakes up before reaching REM.  

Under a non-reducing schedule, it can be natural to wake up after 60m on [[Special:MyLanguage/Siesta|Siesta]]. The mechanism of this schedule likely resembles that of non-reducing E1. Without [[Special:MyLanguage/repartitioning|repartitioning]], all sleep cycles follow the regular order of NREM1, NREM2, SWS, NREM2 and finally REM sleep. Since little vital sleep has been removed, the body naturally wakes up before reaching REM.  

=== Segmented ===

=== Segmented ===

Compared to the default or other reducing variants, these two allow for some flexibility of either core, even during adaptation, and naturally segmented sleepers can adapt to the schedule by simply follow their natural patterns of tiredness. One success from the non-reducing variant (~6.5h total sleep on average) has the first core being ~4.5h long consistently while the second core hovers around 2h. This suggests that non-reducing variants can still be utilized by short sleepers to achieve a flexible Segmented schedule. However, without reducing total sleep, it is expected that it will be significantly harder to fall asleep for those who are not naturally segmented sleepers, which may contribute to the difficulty of the adaptation.

Compared to the default or other reducing variants, these two allow for some flexibility of either core, even during adaptation, and naturally segmented sleepers can adapt to the schedule by simply follow their natural patterns of tiredness. One success from the non-reducing variant (~6.5h total sleep on average) has the first core being ~4.5h long consistently while the second core hovers around 2h. This suggests that non-reducing variants can still be utilized by short sleepers to achieve a flexible Segmented schedule. However, without reducing total sleep, it is expected that it will be significantly harder to fall asleep for those who are not naturally segmented sleepers, which may contribute to the difficulty of the adaptation.

=== BiphasicX ===

=== BiphasicX ===

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BiphasicX is a flexible non-reducing schedule, which can be a combination of all the biphasic schedules.

BiphasicX is a flexible non-reducing schedule, which can be a combination of all the biphasic schedules.

== Polyphasic schedules ==

== Polyphasic schedules ==

=== DC1 ===

=== DC1 ===

For sleepers without an affinity for Segmented sleep, a method to achieve non-reducing Triphasic is to use alarms both for the first and the second core, making total sleep time at night reduced compared to their monophasic baseline. The core midday can then have a natural wake without using alarms.

For sleepers without an affinity for Segmented sleep, a method to achieve non-reducing Triphasic is to use alarms both for the first and the second core, making total sleep time at night reduced compared to their monophasic baseline. The core midday can then have a natural wake without using alarms.

[[File:Pc0.png|thumb|A PC0 variant]]

[[File:Pc0.png|thumb|A PC0 variant]]

=== Multicore schedules ===

=== Multicore schedules ===

Dividing the monophasic core into several cores can be beneficial for intense exercising schedule, since the refreshment from sleep can be met more often. Also, there is a benefit for those, who need to be socially available throughout different hours during the day, or simply to make a sleep structure more exotic.

Dividing the monophasic core into several cores can be beneficial for intense exercising schedule, since the refreshment from sleep can be met more often. Also, there is a benefit for those, who need to be socially available throughout different hours during the day, or simply to make a sleep structure more exotic.

== Lifestyle benefits ==

== Lifestyle benefits ==

People with a hectic lifestyle might also find non-reducing schedules to be their only options in polyphasic sleeping, if they don't have enough time or consistency in life for the adaptation to a strict reducing schedule.

People with a hectic lifestyle might also find non-reducing schedules to be their only options in polyphasic sleeping, if they don't have enough time or consistency in life for the adaptation to a strict reducing schedule.

== References ==

== References ==

<ref name="gn">{{cite web |url=https://www.reddit.com/r/polyphasic/comments/g2j083/official_new_polyphasic_schedule_released_success/ |title=New Polyphasic Schedule Released - Success, Next Plan & Viability |last=GeneralNguyen |date=2020 |website=Reddit |access-date=2020-12-15}}</ref>

<ref name="gn">{{cite web |url=https://www.reddit.com/r/polyphasic/comments/g2j083/official_new_polyphasic_schedule_released_success/ |title=New Polyphasic Schedule Released - Success, Next Plan & Viability |last=GeneralNguyen |date=2020 |website=Reddit |access-date=2020-12-15}}</ref>

}}

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{{TNT|Polyphasic Lifestyle}}

{{TNT|Polyphasic Lifestyle}}

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