Since 2018, medical cannabis has been a legal, regulated treatment option in...

https://spark-wiki.win/index.php/Is_Medical_Cannabis_Considered_After_Other_Treatments_Fail_in_the_UK%3F

Since 2018, medical cannabis has been a legal, regulated treatment option in the UK for persistent insomnia. It is typically viewed as a third-line intervention, considered only after conventional treatments have proven ineffective