Stress, worry and generally things running through our minds tend to keep us awake at night and according to a major study, more than half of us are uanble to get a good night's sleep.
The researchers warn that this lack of sleep is having a serious knock-on effect on our health.
The statistics from the Gret British Sleep Survey, also found that women are three times mor likely than men to suffer - 75 per cent of women report problems, compared with 25 per cent of men.
Professor Colin Espie of Sleepio, the organisation that commissioned the study, says these results pointed to a very real medical problem that needs to be taken seriously, and 25 per cent of of people having insomnia have experienced the condition for over 11 years.
"Insomnia affects people's quality of life during the day, not just their sleep at night," he explains.
"Living with poor sleep and its consequences is not only very common, but it is in all likelihood degrading Britain's health. This is not a trivial matter. It's time for the NHS to pay attention to the scientific evidence that persistent poor sleep elevates the risk of developing new illnesses. This has been shown in disorders such as diabetes, but also very convincingly in depression."
The Great British Sleep Survey interviewed 11,129 adults earlier this year. It found that, of thos who had trouble sleeping, 55 per cent reported having relationship difficulties as a result, while 77 per cent reported issues of concentration, 64 per cent said they were less productive at work, 83 per cent reported problems with their mood and 93 per cent with energy levels.
A two-year study by a team from the Tokyo Medical Unversity published last week found that people who do not get a good night's sleep are twice as likely to suffer from depression.
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