Swiss Study: Phone Ban Boosts Teen Academic Performance

Research shows 40-minute increase in sleep and improved exam results when teenagers restricted from evening smartphone use

Teenagers gain an average of 40 minutes of sleep per night when smartphones are banned from the bedroom in the evening.
Strict phone rules correlate directly with improved exam grades.
Limiting screen time or setting curfews without physical removal of the device has no significant impact on sleep duration.
Geneva secondary schools are implementing a complete ban on mobile phones.

40 minutes

Average nightly sleep gain

1 extra night

Weekly sleep equivalent

9 hours

Required sleep for teens

7 to 8 hours

Actual average sleep

"Every week, this gain of 40 minutes is almost equivalent to an extra night’s sleep."
— Virginie Sterpenich

"Parents therefore play a key role. Their involvement directly influences the health and success of their children."
— Kevin Mammeri

The Sleep Surge: A Critical 40 Minutes

Teenagers gain an average of 40 minutes of sleep per night when smartphones are banned from the bedroom in the evening.
Strict phone rules correlate directly with improved exam grades.
Limiting screen time or setting curfews without physical removal of the device has no significant impact on sleep duration.
Geneva secondary schools are implementing a complete ban on mobile phones.