Going to sleep between 10pm and 11pm could result in a lower risk of developing heart disease.
Sleep
New research has found there was a 12 per cent greater risk for going to sleep between 11pm to 11.59pm compared to an hour beforehand, and a 24 per cent increased risk for heading to bed before 10pm.
Meanwhile, there was a 25 per cent higher risk of cardiovascular disease associated with falling asleep at midnight or later.
Further analysis also found that the increased cardiovascular risk was stronger in women.
The study's author Dr. David Plans, from the University of Exeter, said: "The body has a 24-hour internal clock, called circadian rhythm, that helps regulate physical and mental functioning.
"While we cannot conclude causation from our study, the results suggest that early or late bedtimes may be more likely to disrupt the body clock, with adverse consequences for cardiovascular health."