There is a fundamental reason why some people need much less sleep

Mental health and stress

Mental health can also influence the amount of sleep a person needs. In some cases, stress or anxiety can lead to a reduced need for sleep, as the body may be in a constant state of alertness. However, this can be counterproductive, as lack of adequate sleep can exacerbate mental health problems.

Adaptation and lifestyle

Lifestyle and adaptation also play an important role. Some people may train their bodies to function on less sleep due to work or personal demands. For example, those in professions that require long hours or night shifts may adapt to shorter sleep patterns, although this is not always healthy in the long term.

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