I much prefer amitryptyline for sleep, much gentler I find.
I was prescribed mirtazapine 15mg for the same issues. Well, I just couldn’t wake up the next day. I felt drunk until tea time.
This may of course, not be your experience at all, but my job involves working with special needs teens and this drug wasn’t going to help.
I would say, give it a go. You can always stop taking it, as Flossie has mentioned.
Best of luck 🤞😀