If an individual feels tired much later than their calculated 11:00 p.m. target bedtime, what iterative adjustment is suggested?
Shifting the target bedtime back by 45 minutes to 11:45 p.m.
The process of finding the ideal bedtime involves respecting biological readiness alongside calculated need, especially for individuals with later chronotypes. If the calculated target time is 11:00 p.m., but observation shows the person consistently doesn't feel tired until 11:45 p.m., and they are still achieving their required sleep duration, the recommendation is to treat the target as fluid. The next step in this iterative process is to shift the target bedtime back by the observed difference—in this case, 45 minutes—to 11:45 p.m. This refinement ensures that the targeted time aligns with the actual moment the body signals a readiness for deep rest, thus optimizing the intersection of calculation and biology.
