Changes

Alternatively, it may be possible to '''extend the REM core to 3h''' instead of the SWS core in the evening, which may be beneficial for social hours in the evening or less sleep in the early evening hours. However, it has no known official successes to date. Although it is worth noting that a sleeper with low SWS needs and high REM needs may benefit from this Triphasic-extended variant.

Alternatively, it may be possible to '''extend the REM core to 3h''' instead of the SWS core in the evening, which may be beneficial for social hours in the evening or less sleep in the early evening hours. However, it has no known official successes to date. Although it is worth noting that a sleeper with low SWS needs and high REM needs may benefit from this Triphasic-extended variant.

== Lifestyle Consideration ==

== Lifestyle consideration ==

Because of Triphasic's evening core sleep and daytime core sleep at '''socially inconvenient hours''', Triphasic and Tri Core schedules overall are very unpopular. The requirement to have a core in SWS peak (especially on regular Triphasic) makes it necessary to forfeit social life around evening hours. Another downside to Triphasic is that 4.5h total sleep is not sufficient to make it very flexible after adaptation. So far, there have only been 1 or 2 known adapted cases of being able to make a Triphasic core flexible by '''no more than 30m'''. With the limited flexibility for an average sleeper (with normal sleep needs), it is very challenging to sustain Triphasic long-term, even if the adaptation phase can be completed. Lastly, intense exercising may not be totally supported by Triphasic, because increasing SWS requirements for recovery can prove to be very difficult to avoid SWS wakes in any cores. However, staying on Triphasic can create a sense of very long days, with a long wake gap between each core.  

Because of Triphasic's evening core sleep and daytime core sleep at '''socially inconvenient hours''', Triphasic and Tri Core schedules overall are very unpopular. The requirement to have a core in SWS peak (especially on regular Triphasic) makes it necessary to forfeit social life around evening hours. Another downside to Triphasic is that 4.5h total sleep is not sufficient to make it very flexible after adaptation. So far, there have only been 1 or 2 known adapted cases of being able to make a Triphasic core flexible by '''no more than 30m'''. With the limited flexibility for an average sleeper (with normal sleep needs), it is very challenging to sustain Triphasic long-term, even if the adaptation phase can be completed. Lastly, intense exercising may not be totally supported by Triphasic, because increasing SWS requirements for recovery can prove to be very difficult to avoid SWS wakes in any cores. However, staying on Triphasic can create a sense of very long days, with a long wake gap between each core.