Key points from article :
Report says there is no link between insomnia and early death.
Scientists reviewed 17 studies, which covered close to 37 million people.
It still links insomnia with illnesses such as dementia and depression.
Up to 30% of people in the UK are believed to suffer from insomnia,
People with insomnia often just trying to make it to the end of the day.
The study was published by the journal Sleep Medicine Reviews.
