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{{TNT|E2}}

{{TNT|E2}}

Everyman 2, or E2, is a highly popular schedule in the Everyman line. It consists of 2 naps and a [[Special:MyLanguage/Cores|core]] sleep of 4.5h (3 full cycles) by default.<ref name="pd" />  

Everyman 2, or E2, is a highly popular schedule in the Everyman line. It consists of 2 naps and a [[Special:MyLanguage/Cores|core]] sleep of 4.5h (3 full cycles) by default.<ref name="pd" />  

== Origin ==

== Origin ==

E2 was given by the [[Special:MyLanguage/Ubersleep|Ubersleep]] Formula that details the [[Special:MyLanguage/Everyman|Everyman]] schedules with the number of naps depending on the duration of the core sleep.  It was presented a version of Everyman that is closer to mono than [[Special:MyLanguage/E3|E3]] is. It was originally called E4.5, to represent the core duration, but has since been renamed to E2, to represent the number of naps to maintain consistency between different schedule lines. In recent years, it has been a highly popular schedule, as it provides a significant sleep cut without being too inconvenient or difficult to adapt to.  

E2 was given by the [[Special:MyLanguage/Ubersleep|Ubersleep]] Formula that details the [[Special:MyLanguage/Everyman|Everyman]] schedules with the number of naps depending on the duration of the core sleep.  It was presented a version of Everyman that is closer to mono than [[Special:MyLanguage/E3|E3]] is. It was originally called E4.5, to represent the core duration, but has since been renamed to E2, to represent the number of naps to maintain consistency between different schedule lines. In recent years, it has been a highly popular schedule, as it provides a significant sleep cut without being too inconvenient or difficult to adapt to.  

== Mechanism ==

== Mechanism ==

The 4.5h core allows all [[wikipedia:Slow-wave_sleep|SWS]] needs to be met even during adaptation, since monophasic sleepers typically gain all the required SWS by the middle of the night, after their 3rd sleep cycle. The ideal core placement is around around midnight, for a good balance of REM and SWS pressures. It is recommended for the first nap to be placed the middle of the [[wikipedia:Rapid_eye_movement_sleep|REM]] peak of 6-9AM, allowing high quality REM sleep for the nap. The second nap on E2 may only contain light sleep rather than REM sleep, especially if this nap is late into the afternoon (e.g, 4 PM onward).     

The 4.5h core allows all [[wikipedia:Slow-wave_sleep|SWS]] needs to be met even during adaptation, since monophasic sleepers typically gain all the required SWS by the middle of the night, after their 3rd sleep cycle. The ideal core placement is around around midnight, for a good balance of REM and SWS pressures. It is recommended for the first nap to be placed the middle of the [[wikipedia:Rapid_eye_movement_sleep|REM]] peak of 6-9AM, allowing high quality REM sleep for the nap. The second nap on E2 may only contain light sleep rather than REM sleep, especially if this nap is late into the afternoon (e.g, 4 PM onward).     

== Adaptation ==

== Adaptation ==

Once E2's adaptation is complete, the next step can be [[Special:MyLanguage/E3|E3]] or E3-extended (if E2-extended is attempted).  

Once E2's adaptation is complete, the next step can be [[Special:MyLanguage/E3|E3]] or E3-extended (if E2-extended is attempted).  

== Difficulty ==

== Difficulty ==

Under normal conditions (regular sleep requirements and minimal sleep debts before adapting), E2's difficulty peaks around the third week ([[Special:MyLanguage/4-Stages_Adaptation_Model#Stage_3|Stage 3]]).  

Under normal conditions (regular sleep requirements and minimal sleep debts before adapting), E2's difficulty peaks around the third week ([[Special:MyLanguage/4-Stages_Adaptation_Model#Stage_3|Stage 3]]).  

== Lifestyle Considerations ==

== Lifestyle Considerations ==

This schedule is also good for people who share a bed or room with someone else. It is not too difficult to find a sleep or wake time to match a monophasic person, if they agree to a consistent sleep or wake time.

This schedule is also good for people who share a bed or room with someone else. It is not too difficult to find a sleep or wake time to match a monophasic person, if they agree to a consistent sleep or wake time.

== Variants ==

== Variants ==

Because E2 has substantially more sleep than the minimum threshold for most people, it allows a range of scheduling options. Over the years, there have been several successful adaptations to the variants below.

Because E2 has substantially more sleep than the minimum threshold for most people, it allows a range of scheduling options. Over the years, there have been several successful adaptations to the variants below.

=== 5-hour core ===

=== 5-hour core ===

One sleeper has shown that a 5h core E2 can be a path to [[Special:MyLanguage/SEVAMAYL|SEVAMAYL]] adaptation. The buffer amount from the slightly longer core sleep allows more flexibility of both the naps and the core itself. For these reasons, 5h core is recommended as an alternative to the default one.

One sleeper has shown that a 5h core E2 can be a path to [[Special:MyLanguage/SEVAMAYL|SEVAMAYL]] adaptation. The buffer amount from the slightly longer core sleep allows more flexibility of both the naps and the core itself. For these reasons, 5h core is recommended as an alternative to the default one.

=== Early core ===

=== Early core ===

This variant provides many nighttime hours awake, similar to Segmented or other [[Special:MyLanguage/Dual core|Dual core]] schedules. However, this variant may be more difficult to adapt to, because there is only one morning nap after staying awake for long hours at night. Those who usually have a later bedtime should avoid this, unless it is the only viable option.  

This variant provides many nighttime hours awake, similar to Segmented or other [[Special:MyLanguage/Dual core|Dual core]] schedules. However, this variant may be more difficult to adapt to, because there is only one morning nap after staying awake for long hours at night. Those who usually have a later bedtime should avoid this, unless it is the only viable option.  

=== Late core ===

=== Late core ===

However, naps should not be rotated equally late without particularly strong circadian management. The gaps before both naps can be shortened by 30 to 60 minutes compared to standard. The first nap should be kept close to REM peak ending by 9AM (latest 10AM), and keep the second nap before 5PM to avoid getting SWS in it. Still, the wake gap before core should be no longer than 7-8 hours, as that has often caused failures to adapt. A few did manage to adapt to a larger gap, but this is rare and is not recommended.

However, naps should not be rotated equally late without particularly strong circadian management. The gaps before both naps can be shortened by 30 to 60 minutes compared to standard. The first nap should be kept close to REM peak ending by 9AM (latest 10AM), and keep the second nap before 5PM to avoid getting SWS in it. Still, the wake gap before core should be no longer than 7-8 hours, as that has often caused failures to adapt. A few did manage to adapt to a larger gap, but this is rare and is not recommended.

=== Pronap ===

=== Pronap ===

Note that during adaptation, pronaps may be more difficult to wake up from, due to intense REM wakes or SWS wakes. It is therefore necessary to use extra alarms for it.

Note that during adaptation, pronaps may be more difficult to wake up from, due to intense REM wakes or SWS wakes. It is therefore necessary to use extra alarms for it.

=== Shortened ===

=== Shortened ===

[[File:E2 shortened.png|right|thumb|A Sample E2-shortened]]

[[File:E2 shortened.png|right|thumb|A Sample E2-shortened]]

This variant has been adapted to by a new father in the Discord community. He scheduled a pronap while shortening the core down to only 3h20m. He has been adapted to this variant and maintaining it in the face of daily life for more than a year (and counting). Only sleepers with at least slightly reduced sleep requirements (6-7h) should attempt this variant, which is effectively E3 with one fewer nap, where [[Special:MyLanguage/E3|E3]] by itself is already a very intense schedule.  

This variant has been adapted to by a new father in the Discord community. He scheduled a pronap while shortening the core down to only 3h20m. He has been adapted to this variant and maintaining it in the face of daily life for more than a year (and counting). Only sleepers with at least slightly reduced sleep requirements (6-7h) should attempt this variant, which is effectively E3 with one fewer nap, where [[Special:MyLanguage/E3|E3]] by itself is already a very intense schedule.  

=== Extended ===

=== Extended ===

[[File:Rotated E2-extended.png|right|thumb|A Rotated E2-extended]]

[[File:Rotated E2-extended.png|right|thumb|A Rotated E2-extended]]

This E2-extended allows the core to start at a reasonable time, similar to on monophasic core sleep. If the bedtimes are the same, then the transition to this core length should be relatively easy. The remaining naps are then placed around the noon break and after-school/work hours. Since there is no successful adaptations with this scheduling so far, it is still mostly hypothetical. More data is needed to conclude if this variant is viable.

This E2-extended allows the core to start at a reasonable time, similar to on monophasic core sleep. If the bedtimes are the same, then the transition to this core length should be relatively easy. The remaining naps are then placed around the noon break and after-school/work hours. Since there is no successful adaptations with this scheduling so far, it is still mostly hypothetical. More data is needed to conclude if this variant is viable.

=== Night shift ===

=== Night shift ===

[[File:E2 Third Shift.png|right|thumb|Night shift E2]]

[[File:E2 Third Shift.png|right|thumb|Night shift E2]]

E2 is one of the few polyphasic schedules with successful adaptations with night shift work. Working night shifts greatly increases the adaptation difficulty for all schedules, and even normally easy schedules like [[Special:MyLanguage/Segmented|Segmented]] can become extremely difficult. As with all other schedules for night shift workers, strong circadian management is needed to adapt to this schedule. Long term health issues may still ensue from a shifted circadian rhythm.

E2 is one of the few polyphasic schedules with successful adaptations with night shift work. Working night shifts greatly increases the adaptation difficulty for all schedules, and even normally easy schedules like [[Special:MyLanguage/Segmented|Segmented]] can become extremely difficult. As with all other schedules for night shift workers, strong circadian management is needed to adapt to this schedule. Long term health issues may still ensue from a shifted circadian rhythm.

== References ==

== References ==