There have been lawsuits and many complaints to the FDA regarding Belsomra. See the link below from Consumer Reports. I was prescribed this by a "sleep doctor" although I told her I didn't want to take one of the "hynotic" sleeping pills where you could do activities in your sleep that you didn't remember the next day. She assured me this drug did not have that side effect, but my research before taking it told me otherwise. Besides being rated ineffective by most users, it's extremely expensive.
https://www.consumerreports.org/drugs/fda-fields-complaints-on-sleeping-pill-suvorexant-belsomra/