insomnia
"I had a medical issue, followed by surgery, then severe insomnia.  I took Ambien at first, and it works well, but I started sleep walking with no memory, so I sought another treatment.  Trazodone was next, but after six nights of wicked dreams and a racing heart, I quit Trazodone.  I now take Zaleplon for insomnia and it's the best medicine yet.  Zaleplon gives me 5-6 solid hours of sleep with no wild dreams and no sleep walking."