Translations:Uberman/27/en
From Polyphasic Sleep Wiki
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.