Translations:E2/19/en
From Polyphasic Sleep Wiki
One thing to note is that those with high REM requirements who cannot complete E2 adaptation can switch to a Dual core schedule with a longer sleep around dawn. The potential insufficient time in REM can be a weakness of E2 and other Everyman schedules, where the repartitioning of REM sleep for these individuals is considered difficult when relying only on 20m naps.
