Dr Jean-Marc Sène urged people to embrace daily twenty-minute naps to combat stress and fatigue during an appearance on French television channel TF1 on Monday, August 10.
Speaking on the morning show Bonjour! La Matinale TF1, the general practitioner explained that sleeping for just twenty minutes aligns perfectly with the body's shortest sleep cycle, providing maximum rest without causing post-nap grogginess.
His advice coincided with World Laziness Day on August 10, an unofficial annual observance created to encourage people to slow down, rest, and reduce daily stress. Sène emphasized that taking care of sleep habits is essential for maintaining long-term health.
The Science of Sleep Cycles
Sène detailed how human sleep operates in structured cycles, with the initial phase being the briefest. He stated that twenty minutes is the ideal duration for a daytime nap because remaining asleep for longer pushes the body into deeper sleep stages.
Entering deeper sleep cycles makes waking up significantly harder. Sène noted that people who sleep beyond the initial twenty-minute window often experience discomfort, disorientation, and prolonged sluggishness after waking.
Addressing the widespread tiredness people feel after eating lunch, Sène explained that a drop in alertness around 2:00 PM is a completely normal physiological phenomenon. He clarified that digestion alone does not cause this afternoon fatigue, pointing instead to the natural circadian cycle that regulates alertness throughout the day.
The circadian rhythm serves as the internal biological clock controlling physical and mental alertness over a twenty-four-hour period. Sène said a short nap at around 2:00 PM perfectly supports the body during this natural dip in energy.
Benefits and Historical Examples
A short daytime rest offers significant cognitive benefits, including increases in alertness, memory retention, and mental concentration. Sène revealed that NASA pilots actively utilize short naps to maintain peak performance during demanding flights.
NASA, the United States space agency, has long studied fatigue management to help pilots and astronauts maintain cognitive performance. Sène added that former British Prime Minister Winston Churchill was also a devoted practitioner of daily naps, maintaining the habit even while leading the United Kingdom during the Second World War.
Optimal Timing and Coffee Naps
To achieve the best results, Sène recommended setting an alarm or timer for thirty minutes, allowing ten minutes to fall asleep and twenty minutes to rest. He advised scheduling naps between 1:00 PM and 3:00 PM, while strongly warning against napping after 4:00 PM.
Napping late in the afternoon eats into night sleep, according to the health columnist, disrupting overall rest patterns. For those seeking an extra energy boost, Sène suggested trying a coffee nap, which involves drinking a coffee immediately before lying down so the caffeine takes effect just as the twenty-minute sleep ends.
