Kudos to the BBC for increasing awareness of this issue with  non-technical device users, who will need manufacturers to implement bedtime mode as a factory-installed feature.<p>Previous industries have sold products with negative health impacts, with changes eventually coming from consumer pushback, government regulation and&#x2F;or class-action lawsuits.<p>There must be at least one mainstream device manufacturer who has a large advertising budget and can take a leadership position by implementing bedtime mode and <i>advertising</i> the health benefits.