Since becoming legal in the UK in 2018, medical cannabis remains an option...

https://zulu-wiki.win/index.php/What_should_I_track_before_a_sleep_appointment_to_explain_my_symptoms%3F

Since becoming legal in the UK in 2018, medical cannabis remains an option strictly under specialist oversight and only after other treatments have been exhausted. It is not a first-line choice for sleep disorders