Severe anxiety been perscribed zopiclone to sleep

Hi, my anxiety is through the roof, on sertraline 150mg still waiting for it to kick in, Bern given zopiclone to aid sleep. Anybody else used it?

Not that one as I take a very small dose of mirtazapine which does help me sleep. I am on 150 mg of sertraline and it really suits me. I started off on 100mg which did nothing and I know the maximum dose is 200mgs. x