Core Insights - A recent study has identified a genetic mutation linked to individuals who require significantly less sleep, potentially aiding in the development of treatments for sleep disorders [2][6] Group 1: Genetic Findings - The research discovered a rare mutation in a gene that regulates the circadian rhythm, which may explain why some individuals can function well on only 3-6 hours of sleep [2][3] - The team has identified five mutations across four different genes associated with this short-sleep trait, with variations observed among different families [4] Group 2: Implications for Sleep Research - The study involved genetic modifications in mice, revealing that a specific mutation in the SIK3 gene resulted in a reduction of sleep time by 31 minutes compared to normal mice [5] - Researchers are continuing to explore how these genetic mutations affect sleep patterns in the general population, aiming to uncover more about the body's regulation of sleep [6]