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DC1 is also considered an '''ideal polyphasic schedule''' to attempt, given his total sleep, which ranges from ~'''5.3-6.3h''' and is very friendly for beginners.  
 
DC1 is also considered an '''ideal polyphasic schedule''' to attempt, given his total sleep, which ranges from ~'''5.3-6.3h''' and is very friendly for beginners.  
 
== Mechanism ==
 
== Mechanism ==
DC1's mechanisms largely carry on from the original Segmented sleep. Each core sleep is located around each respective sleep peak to further consolidate the overall sleep structure. The first core may remain around the same length or some slight reduction compared to the first core of Segmented sleep, to preserve the amount of SWS, while the second core is reduced in length so that REM can be alleviated in the nap. There have been some changes in DC1's scheduling proposals over the years, and now the standard variant is recommended to have a core sleep of 3h20m and 1h40m respectively. The cycle length does not follow the common 90m rules mostly because of the effects of sleep peaks, which ''may'' lengthen the cycles of the dominant sleep stage in the peak (e.g, longer REM cycle around REM peak and longer SWS cycle around SWS peak). DC1 in its original design was intended to have a total of '''at least 5h''' for both core sleeps, which is a reasonable upgrade from the sleep total of Segmented, while not being overly taxing to adapt to when a daytime nap is introduced.     
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DC1's mechanisms largely carry on from the original Segmented sleep. Each core sleep is located around each respective sleep peak to further consolidate the overall sleep structure. The first core may remain around the same length or some slight reduction compared to the first core of Segmented sleep, to preserve the amount of SWS, while the second core is reduced in length so that REM can be alleviated in the nap. There have been some changes in DC1's scheduling proposals over the years, and now the standard variant is recommended to have a core sleep of 3h20m and 1h40m respectively. The cycle length does not follow the common 90m rules mostly because of the effects of sleep peaks, which ''may'' lengthen the cycles of the dominant sleep stage in the peak (e.g, longer REM cycle around REM peak and longer SWS cycle around SWS peak). However, according to EEG readings of some community members, sometimes cycle length might be unchanged and shorter, so there is more LNREM inserted in the end of cores.<ref>Zeo reading of a [https://www.imgurupload.com/uploads/20201117/13e019f96f652f0ec610a4fc9f1827c99510151b.jpg shorter core], Sekvanto.</ref><ref>[https://www.imgurupload.com/uploads/20201117/5b634c74a7ea495e7158299c35f303c47375b86c.jpg longer core]</ref> DC1 in its original design was intended to have a total of '''at least 5h''' for both core sleeps, which is a reasonable upgrade from the sleep total of Segmented, while not being overly taxing to adapt to when a daytime nap is introduced.     
    
The nap also serves to bridge the long daytime wake gap which has increased because of the reduced total sleep from both cores combined. It is also placed in the '''circadian nadir''' around noon and early afternoon, which can give a familiar sense of daytime napping on E1 and Siesta. Alertness dips often occur around these hours, so DC1's nap takes advantage of the natural energy dips to facilitate napping. However, the nap on DC1 does not always guarantee a high percentage of REM sleep. For some attempters, it '''only contains NREM2''', or very small amount of REM, especially if the nap is placed somewhat late in the afternoon (after ~3 PM). Despite all that, the nap can sustain alertness for a long time until the first core (~7-8h) , because it is generally easier to stay awake in the day than during the night (~4-5h between 2 cores).  
 
The nap also serves to bridge the long daytime wake gap which has increased because of the reduced total sleep from both cores combined. It is also placed in the '''circadian nadir''' around noon and early afternoon, which can give a familiar sense of daytime napping on E1 and Siesta. Alertness dips often occur around these hours, so DC1's nap takes advantage of the natural energy dips to facilitate napping. However, the nap on DC1 does not always guarantee a high percentage of REM sleep. For some attempters, it '''only contains NREM2''', or very small amount of REM, especially if the nap is placed somewhat late in the afternoon (after ~3 PM). Despite all that, the nap can sustain alertness for a long time until the first core (~7-8h) , because it is generally easier to stay awake in the day than during the night (~4-5h between 2 cores).  
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All in all, DC1 remains a solid schedule to attempt, as it is one of the most balanced schedules with moderate difficulty. Being adapted to DC1 is no banal achievement, while the extra time, benefits of the night gap, the maneuvering of both sleep peaks, a unique experience from both core sleeps (one core is very deep, potentially near a blackout yet peaceful and calm, while the other one is often explosive with wild dreams) promise a blistering adaptation experience.
 
All in all, DC1 remains a solid schedule to attempt, as it is one of the most balanced schedules with moderate difficulty. Being adapted to DC1 is no banal achievement, while the extra time, benefits of the night gap, the maneuvering of both sleep peaks, a unique experience from both core sleeps (one core is very deep, potentially near a blackout yet peaceful and calm, while the other one is often explosive with wild dreams) promise a blistering adaptation experience.
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== References ==
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<references />
 
[[Category:Schedules]]
 
[[Category:Schedules]]
 
{{Polyphasic Sleep Schedules}}
 
{{Polyphasic Sleep Schedules}}
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