insomnia
"I was taking Ambien CR 12.5mg  for 2 years sleeping great, but over time I developed a tolerance, I had to take my Ambien and a kolonpin to sleep. I started taking Belsomra 10mg a week ago, it works great! I recently have been crying at night bc I couldn't sleep, but this is working great. I'd say it lasts a good 7 hours for me, I'm not drowsy when I wake, the only side effect I have are really enhanced dreams, not scary just so detailed."