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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 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 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.  
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Alternatively, the first nap can be extended to become a '''Pronap''' (e.g, 30m) to better sustain wakefulness and provide more REM sleep for individuals with somewhat higher REM requirements, because the first nap is located in REM peak. The reason a Pronap can be used is that both core sleeps mostly cover all SWS needs, leaving basically no room for SWS to occur in this hypothetical Pronap. The Pronap can then yield better wakefulness sustaining, and can become flexible after adaptation. However, it is important to note that this is a new proposal for an alternate DC2 variation, and has not been tested. There is also little incentive to try out this early rotation/Pronap variants, because the first core is too early in the evening, and becomes socially liable for a lot of people.  
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Alternatively, the first nap can be extended to become a '''Pronap''' (e.g, 30m) to better sustain wakefulness and provide more REM sleep for individuals with somewhat higher REM requirements, because the first nap is located in REM peak. The reason a Pronap can be used is that both core sleeps mostly cover all SWS needs, leaving basically no room for SWS to occur in this hypothetical Pronap. The Pronap can then yield better wakefulness sustaining, and can become flexible after adaptation. However, it is important to note that this is a new proposal for an alternate DC2 variation, and has not been tested. There is also little incentive to try out this early rotation/Pronap variant, because the first core is too early in the evening, and becomes a liability for social time for a lot of people.  
    
=== Extended variant ===
 
=== Extended variant ===
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