insomnia
"I started Belsomra 15mg about 3 wks ago. It has not worked for me at all. After taking the medication earlier (7:45-8:00 pm) and spending several sleepless nights my Dr increased 
my dosage to 1 & 1/2 tablets. The last few nights I have been up past 4am. Even when I finally dose off I wake up at least once an hour. I will call my Dr in the morning, I'll be awake. Exhausted!  But awake!"