Pregnancy insomnia 💀

I am experiencing the WORST insomnia of my life! I had mild insomnia with my first, but its gotten to the point where I cant even nap during the day?! Were on day 4 of the insomnia and ive maybe slept 7 hours total this entire time. I go to bed at 10 and lay there with random songs on loop until my baby wakes up at 9ish. I was able to snag at least an hour or two during his nap time-but hes been asleep for 2 hours now and im just laying in bed awake. Trying Magnesium Glycinate tonight. Hope it helps. I have never been more exhausted in my life. Anyone else experiencing my pain? What are you doing for it? My OB told me to take Unisom but im really not looking to take an antihistamine all pregnancy