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From Polyphasic Sleep Wiki
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Text replacement - "sleep deprivation" to "sleep deprivation"
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Adapting to Uberman is extremely difficult. While some people may claim that there is an easier method, that is simply not the case. Any methods of adapting to this schedule involves prolonged, intense sleep deprivation which is necessary to produce the level of sleep compression required.
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Adapting to Uberman is extremely difficult. While some people may claim that there is an easier method, that is simply not the case. Any methods of adapting to this schedule involves prolonged, intense [[wikipedia:Sleep_deprivation|sleep deprivation]] which is necessary to produce the level of sleep compression required.
    
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Without previous napping experience, naps will mostly contain [[wikipedia:Non-rapid_eye_movement_sleep|light sleep]] or traces of SWS. As the REM need is not being fulfilled, REM pressure quickly builds up to high levels, causing a REM rebound. This usually happens around day 3-5. This will appear to suddenly alleviate the sleep deprivation, making people prone to overconfidence about the adaptation. After this, naps mostly contain REM, and SWS pressure starts to build up. SWS rebound usually occurs on day 7-8 and it is the hardest part of the adaptation where most people oversleep and fail their schedules. After avoiding this first crash, subsequent crashes once every 2-3 days also needs to be avoided. REM and SWS pressure gradually reaches an equilibrium and the schedule is finally stabilized. This can take weeks and some may need up to 6 weeks on the schedule.
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Without previous napping experience, naps will mostly contain [[wikipedia:Non-rapid_eye_movement_sleep|light sleep]] or traces of SWS. As the REM need is not being fulfilled, REM pressure quickly builds up to high levels, causing a REM rebound. This usually happens around day 3-5. This will appear to suddenly alleviate the [[wikipedia:Sleep_deprivation|sleep deprivation]], making people prone to overconfidence about the adaptation. After this, naps mostly contain REM, and SWS pressure starts to build up. SWS rebound usually occurs on day 7-8 and it is the hardest part of the adaptation where most people oversleep and fail their schedules. After avoiding this first crash, subsequent crashes once every 2-3 days also needs to be avoided. REM and SWS pressure gradually reaches an equilibrium and the schedule is finally stabilized. This can take weeks and some may need up to 6 weeks on the schedule.
    
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The harsh adaptation is extremely sensitive to skipping naps. As claimed by Puredoxyk in ''Ubersleep'', just skipping one nap causes intense sleep deprivation, similar to when one skips a few nights of monophasic sleep in a row. Even after adaptation, the risk of oversleeping remains, and alarms may have to be maintained indefinitely.  
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The harsh adaptation is extremely sensitive to skipping naps. As claimed by Puredoxyk in ''Ubersleep'', just skipping one nap causes intense [[wikipedia:Sleep_deprivation|sleep deprivation]], similar to when one skips a few nights of monophasic sleep in a row. Even after adaptation, the risk of oversleeping remains, and alarms may have to be maintained indefinitely.  
    
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