Translations:Non-reducing/21/en
From Polyphasic Sleep Wiki
Non-reducing Triphasic often may fit people with a natural tendency to Segmented, who are unable to get enough sleep at night, often because of frequent WASOs or being unable to go to sleep early and wake up late, thus having a need to cut the second core, which would make Segmented sleep reducing. Adding a core during the day would have a similar mechanism to Siesta.