Since 2018, medical cannabis has been legally available in the UK via...

https://meet-wiki.win/index.php/How_Do_People_Describe_Waking_Up_After_Using_Medical_Cannabis_for_Sleep%3F

Since 2018, medical cannabis has been legally available in the UK via specialist prescribing. It is typically considered as a third-line option, only after standard sleep treatments and therapies have been exhausted