Friday, March 15, is International Sleep Day in France. French nights last on average 6 hours 45 minutes during the week, or 15 minutes less than last year.

In 2020, 28% of French people slept less than 6 hours per night. Blue light from screens does not pose any real problems during the day, but can delay falling asleep when it continues until late in the evening. “It keeps our brain active”: why looking at screens late at night is bad for our sleep.