Sleep expert Alfredo Rodríguez-Muñoz warns that consistently foregoing sleep is associated with serious health risks, including obesity, depression, and cognitive impairment. This caution arises amidst the growing popularity of a self-help approach promoting reduced sleep, popularized by a successful book. However, Rodríguez-Muñoz emphasizes this practice lacks scientific backing and contradicts fundamental biological needs. He asserts there is no logical basis for intentionally limiting sleep duration. The expert’s statements highlight the importance of prioritizing adequate rest for overall well-being and cognitive function. The trend of minimizing sleep, despite its perceived benefits in productivity, is deemed potentially harmful by the specialist. Further research is needed to fully understand the long-term effects of chronic sleep deprivation.