Core Viewpoint - The evaluation of good sleep should not be based solely on duration, as the required sleep time varies among individuals. For the Asian population, a sleep duration of 7 to 8 hours is generally associated with lower disease risk, but individual differences must be considered [1] Summary by Relevant Categories - **Sleep Duration**: The average recommended sleep duration for most individuals in the Asian population is 7 to 8 hours, which corresponds to a lower risk of various diseases [1] - **Individual Differences**: There is no absolute standard for sleep duration, as individual needs vary, including those of infants who require longer sleep [1] - **Quality of Sleep**: Factors such as bedtime, the proportion of deep sleep versus light sleep, and waking up feeling refreshed are critical indicators of sleep quality, rather than just the total hours slept [1]