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

https://mylesjnqb962.iamarrows.com/what-does-tightly-regulated-mean-for-uk-medical-cannabis-access

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.