Since 2018, medical cannabis can be legally prescribed by UK specialists,...

https://blogfreely.net/gertonmhvf/why-do-clinicians-look-at-the-bigger-picture-not-just-your-sleep

Since 2018, medical cannabis can be legally prescribed by UK specialists, usually after standard treatments have been exhausted. As results vary, it is vital to discuss your history with a consultant to see if this clinical path is right for your insomnia