insomnia
"I sustained a severe concussion several months ago and could not sleep afterwards due to the injury to my brain.  It would take hours to fall asleep, only to wake up every 90 minutes and have another hour to fall back asleep.  Since the brain heals while you are sleeping, my concussion symptoms (stuttering, speech/language problems, memory loss, headaches, dizziness/vertigo) kept getting worse.   My Dr prescribed Belsomra, and gave me specific instructions: take it 1/2 hour before  bed, no screens for an hour before bed, no heavy meals after 7pm.  I started with 7.5 mg and then moved up to 10 mg a few weeks later.  My sleep is amazing, and I started to heal.  Had some funny dreams but didn't mind.  Down to 3x/wk. I am so grateful for this medicine!"