Changes

===Slightly modified core duration===

===Slightly modified core duration===

[[File:DC2-mod.png|center|thumb|A DC2 variant proposed by Polyphasic Society]]

[[File:DC2-mod.png|thumb|A DC2 variant proposed by Polyphasic Society|alt=]]

This scheduling variant was proposed by <u>'''[[Polyphasic Society]]'''</u> a long time ago, which gives an extra amount of sleep reduction compared to the standard variant. Totaling 4h40m of sleep, this version may be more appealing to adapt to than the standard version, as it also gives a similar amount of total sleep to E3 (3.5h core and 3 20m naps). The basis of this version was to induce a bit more sleep reduction in the first core sleep and add a second nap. However, it is not recommended to schedule a 2.5h core from the beginning, because it likely will result in heavy SWS wakes and increases the chance for oversleeping. As mentioned above, there is still some chance for the automatic reduction in the SWS core's length after adaptation, so it is not necessary to adapt to this variant. This total sleep may also contribute to the potential inflexibility of the schedule after adaptation, or make it a lot more difficult to flex each sleep block. Throughout the years, there were '''virtually no successful adaptations to this DC2 variant'''. It may benefit sleepers with lower SWS requirements or shorter overall sleep duration on monophasic sleep, though.  

This scheduling variant was proposed by <u>'''[[Polyphasic Society]]'''</u> a long time ago, which gives an extra amount of sleep reduction compared to the standard variant. Totaling 4h40m of sleep, this version may be more appealing to adapt to than the standard version, as it also gives a similar amount of total sleep to E3 (3.5h core and 3 20m naps). The basis of this version was to induce a bit more sleep reduction in the first core sleep and add a second nap. However, it is not recommended to schedule a 2.5h core from the beginning, because it likely will result in heavy SWS wakes and increases the chance for oversleeping. As mentioned above, there is still some chance for the automatic reduction in the SWS core's length after adaptation, so it is not necessary to adapt to this variant. This total sleep may also contribute to the potential inflexibility of the schedule after adaptation, or make it a lot more difficult to flex each sleep block. Throughout the years, there were '''virtually no successful adaptations to this DC2 variant'''. It may benefit sleepers with lower SWS requirements or shorter overall sleep duration on monophasic sleep, though.  

[[File:DC2-mod 2.png|center|thumb|A DC2 variant with extra sleep compression]]

[[File:DC2-mod 2.png|thumb|A DC2 variant with extra sleep compression|alt=]]

Similar to the Polyphasic Society's proposal of a possible DC2 variant, this DC2 variant stresses on the final goal once the adaptation is completed - to compress both core sleeps down to a '''multiple of 80m cycles''' (from 90m). The common approach would be to adapt to the original '''3-1.5''' standard combination, and then wait for the compression to occur, thanks to the frequency of sleep. It is not recommended to start an adaptation with this variant, however, because of the increased chance to run into SWS/REM wakes that give an excessive amount of sleep inertia that could be alleviated in the standard setup.  

Similar to the Polyphasic Society's proposal of a possible DC2 variant, this DC2 variant stresses on the final goal once the adaptation is completed - to compress both core sleeps down to a '''multiple of 80m cycles''' (from 90m). The common approach would be to adapt to the original '''3-1.5''' standard combination, and then wait for the compression to occur, thanks to the frequency of sleep. It is not recommended to start an adaptation with this variant, however, because of the increased chance to run into SWS/REM wakes that give an excessive amount of sleep inertia that could be alleviated in the standard setup.  

[[File:DC2-mod 3.png|center|thumb|A DC2-modified variant with the same sleep duration for both cores]]

[[File:DC2-mod 3.png|thumb|A DC2-modified variant with the same sleep duration for both cores|alt=]]

This DC2 variant offers a somewhat higher total sleep than usual (not high enough to be grouped into the extended category), and both core sleeps last for 2.5h each. So far there has only been one success with this variant, however. The premise behind this variant is to '''provide some buffer total sleep to advance to DUCAMAYL''' with both cores becoming flexible. This example sets the consideration for appropriate core durations to ensure that they can receive some flexibility after adaptation. Because of the highly uncommon and ill-advised 2.5h core duration, beginners and inexperienced polyphasic sleepers should avoid this variant.  

This DC2 variant offers a somewhat higher total sleep than usual (not high enough to be grouped into the extended category), and both core sleeps last for 2.5h each. So far there has only been one success with this variant, however. The premise behind this variant is to '''provide some buffer total sleep to advance to DUCAMAYL''' with both cores becoming flexible. This example sets the consideration for appropriate core durations to ensure that they can receive some flexibility after adaptation. Because of the highly uncommon and ill-advised 2.5h core duration, beginners and inexperienced polyphasic sleepers should avoid this variant.  

===Early rotation/Pronap===

===Early rotation/Pronap===

[[File:DC2 Early Rotation.png|center|thumb|A DC2 variant with the first nap around dawn]]

[[File:DC2 Early Rotation.png|thumb|A DC2 variant with the first nap around dawn|alt=]]

This interesting DC2 variant rotates the whole schedule backward, to earlier hours. The premise behind this distribution of sleeps is to place most sleep blocks to night hours, and only have one nap in the day. As a result, the wake gap between each core is possibly smaller than on the standard version. The first nap is placed at the usual position of the second core, and as a result, it is very similar to an [[Everyman|Everyman schedule]]. The first core likely will contain most SWS needs, while the second core may be a mixed core (containing both SWS and REM, but likely more REM sleep). Both naps may contain REM sleep, which can boost the chance to recall dreams.  

This interesting DC2 variant rotates the whole schedule backward, to earlier hours. The premise behind this distribution of sleeps is to place most sleep blocks to night hours, and only have one nap in the day. As a result, the wake gap between each core is possibly smaller than on the standard version. The first nap is placed at the usual position of the second core, and as a result, it is very similar to an [[Everyman|Everyman schedule]]. The first core likely will contain most SWS needs, while the second core may be a mixed core (containing both SWS and REM, but likely more REM sleep). Both naps may contain REM sleep, which can boost the chance to recall dreams.  

===Extended variant===

===Extended variant===

[[File:DC2-ext Base.png|center|thumb]]

[[File:DC2-ext Base.png|thumb|alt=|A DC2-extended variant]]

'''DC2-extended''' simply extends the second core sleep by a full cycle, making it 3h total. This variant shares the same total sleep as E2-extended, with the exception of having 2 core sleeps. People with high sleep requirements (especially in both REM and SWS) can make use of the sleep frequency and the assistance from naps to meet the necessary vital sleep requirements. The only advantage of this version is that the first core can be delayed to the last hours of SWS peak - meaning it is possible to schedule this core at 11 PM or later. However, while looking realistic on paper, DC2-extended has never really reported any successes. It is also outclassed by '''E2-extended''', which is more convenient in scheduling, more success and an allegedly easier adaptation. While it is possible to schedule the first core to be 4.5h long and the second core to be 1.5h long (for more SWS recovery from intense exercising or high SWS requirement), DC2-extended is also shadowed by '''DC1-extended''', which has the same total sleep for both cores combined while only requiring 1 daytime nap (more comfortable to keep up long-term).   

'''DC2-extended''' simply extends the second core sleep by a full cycle, making it 3h total. This variant shares the same total sleep as E2-extended, with the exception of having 2 core sleeps. People with high sleep requirements (especially in both REM and SWS) can make use of the sleep frequency and the assistance from naps to meet the necessary vital sleep requirements. The only advantage of this version is that the first core can be delayed to the last hours of SWS peak - meaning it is possible to schedule this core at 11 PM or later. However, while looking realistic on paper, DC2-extended has never really reported any successes. It is also outclassed by '''E2-extended''', which is more convenient in scheduling, more success and an allegedly easier adaptation. While it is possible to schedule the first core to be 4.5h long and the second core to be 1.5h long (for more SWS recovery from intense exercising or high SWS requirement), DC2-extended is also shadowed by '''DC1-extended''', which has the same total sleep for both cores combined while only requiring 1 daytime nap (more comfortable to keep up long-term).   

{{TNT|Polyphasic Sleep Schedules}}

<references />{{TNT|Polyphasic Sleep Schedules}}

[[Category:Schedules]]

[[Category:Schedules]]