polyphasic.info

MonoCore-3

Rarely attempted schedule

You are probably looking for M3-Extended, a much more commonly slept and recommended schedule.
MonoCore 3 is a schedule with a 3h core, usually in the SWS peak. It was invented by Puredoxyk as Everyman, later E3, now M3, and is extremely or impossibly difficult for people with around-average sleep needs.
TST4h
Cores1 @ 3h
Naps3 @ 20mins
Difficulty4-5 / 5
RSR Difficulty2-3 / 5
Flex-potentialLow
Variant links: M3-Extended

(Im)possibility

Unlike what past messaging suggests, to many individuals, M3 is not adaptable. This is because its total sleep time is too low for most to gain all of their vitals given 20-50% minimum light-sleep. Individuals with RSR or very strong vital deepening abilities may attempt this schedule and have a decent chance of succeeding.

A more detailed explanation can be found at M3impossible.

3.5h Variant

Originally, this variant was called E3.5, but is now referred to as M3 as well. Here, the core is extended to 3h30, resulting in 4h30 of TST. This variant has a difficulty of 4/5 instead of 4-5/5, being possible for significantly more people without RSR.

Extension

Extension can make M3 much more viable, in the form of M3ext.

Origin

This schedule is based on nap theory and was coined by Puredoxyk. It was originally just called Everyman before being termed Everyman 3 (based on the 3h core) and then Everyman 3 (based on the number of naps). Polyinfo refers to it as MonoCore 3 for consistency with other names and clarity.