4-Stages Adaptation Model

This is the most popular and up-to-date model of adaptation at present, which was developed by the members of the Polyphasic Sleep Discord Community. Most popular polyphasic schedules are based on natural sleep patterns of human. It's, first of all, biphasic schedules, which were wide spread both before modern time and nowadays; Everyman, which uses the mechanism of power naps; Dual Core, which is based on Segmented sleep pattern, popular in the pre-industrial society; and schedules with even more cores, which are based on a similar mechanism as Segmented sleep. Monophasic sleep became popular relatively recently, after the industrial revolution.

New sleep schedule requires an adaptation, which includes repartitioning of vital sleep stages and teaching the brain to use another type of sleep. By the community observations, this process usually is mostly similar for different individuals, which allows us to construct a stage-like model for this. The model contains 4 stages, which gradually transit one into another.