A new study has revealed which regions in the UK are the best and worst for good sleep, with London being the worst.

Research by sleep experts Eachnight studied official government data on light pollution, noise complaints and anxiety levels across the eleven regions of Great Britain to determine where someone can expect the best and worst night’s sleep. Each region was given a score out of ten for each factor, adding up to an overall score out of 30.

It was concluded that Wales is the best place in the UK to get good sleep, with an overall score of 25.77 out of a possible 30. Wales had the second lowest level of noise complaints and the second lowest average brightness, giving it a high score overall.

The South West is the second-best place for high quality sleep, with an overall score of 21.96 out of 30. The South West ranks in the top four of all three factors, making it a good place to get high quality sleep.

Following closely behind with a score of 21.83 is Scotland. Scotland is the darkest region and the third least anxious, however it is also the second highest region for noise complaints, compromising its overall score.

Next is the North East with a score of 21.43. The North East has the lowest level of noise complaints, however it also has the second highest level of anxiety, meaning it is ranked fourth overall.

Fifth on the list is the East Midlands, with a score of 19.72. The East Midlands falls in the middle of the rankings for brightness levels and noise complaints; however, it also reports the second lowest levels of anxiety.