Since 2018, medical cannabis has been a legal option in the UK, provided it is...

https://aged-wiki.win/index.php/Why_Do_Clinicians_Look_at_the_Bigger_Picture,_Not_Just_Sleep%3F

Since 2018, medical cannabis has been a legal option in the UK, provided it is prescribed by a specialist. It is typically considered only after standard sleep treatments have proven ineffective