A news report from the Daily Mail says television binge-watching is leaving millions of people short of sleep.
Increasing numbers of viewers are staying up late because they lack the willpower to press the off button. The situation is being made worse by on-demand TV and streaming services.
Nearly one in ten habitually watch television until midnight, the report by research company Trajectory says. The proportion has almost doubled since the turn of the millennium, when TV series came in DVD boxed sets.
While DVDs require people to get up and replace the disc, streaming services like Netflix or Amazon Prime screen the next part of a series automatically as one finishes.
The survey said nine per cent of people watched TV until midnight last autumn, compared with five per cent in 2000.