Nightsleeper
Created by Nick Leather
On BBC One
A high-stakes real-time thriller confined to a moving train, where escalating danger and the pressure of impossible coordination drive sustained suspense across a tight six-episode arc.
Set on a sleeper train traveling from Glasgow to London, a government agency desperately tries to intervene in the rapidly-escalating events onboard. Can two people who've never met, one on the train and one not, work together to save the lives of its disparate group of passengers as the Heart of Britain service hurtles towards what might quite literally be its final destination?
Where to watch
- StreamBritBox
Questions people ask
Is Nightsleeper scary? Yes. More frightening than 87% of series.
Is Nightsleeper easy watching? Barely. Less comforting than 75% of series.
Does Nightsleeper leave you hopeful? Not especially. Less hopeful than 73% of series.
Is Nightsleeper violent? Somewhat. More violent than 71% of series.
Is Nightsleeper sad? About average. Almost exactly mid-range.
These describe how the series comes across across its whole run, compared with other well-known series. They are not a content list — nothing here was counted or checked episode by episode, so for age-suitability or specific content use a classification board or a dedicated content-warning service.
Cinnamon Score
How much this series gives you that nothing else will, and whether it delivers.
Familiar shape, done well.
How unlike any other series this one feels
How much more it delivers than it promises
How much audiences actually like it
Ensemble
Like Nightsleeper
Nearest across the full emotional profile.
Same Mood as Nightsleeper
Nearest on what's most distinctive about this one.
Like Nightsleeper, But Darker
Similar, pushed toward heavier and more intense.
Like Nightsleeper, But Lighter
Similar, pushed toward warmer and easier.
Like Nightsleeper, But Less Popular
Same territory, far fewer people have seen it.
