Since 2018, medical cannabis has been legal in the UK via specialist...

https://andreimgc701.cavandoragh.org/navigating-medical-cannabis-information-a-patient-centered-approach-in-the-uk

Since 2018, medical cannabis has been legal in the UK via specialist prescribing. Usually considered only after other insomnia treatments have failed, it is not a quick fix. As with any clinical care, individual patient experiences vary widely.