Insomnia Remedies??

Dawn • After 2 MMCs and 2 CPs in 2016, our 🌈👶🏼 is due 10.17.17.
Hi. I'm suffering from severefirst trimester  insomnia. I'm only 5w5d, but recall it lasting til about 9 weeks with my first (who I lost in a MMC). I'm on magnesium supplements already, but they don't seem to be helping anymore. My insomnia seems to be worsening so I wanted to see if anyone had any ideas. Naps are not an option with my job so I need HELP.