Trazodone
"I've had insomnia for years. Finally had a sleep study done and it turned out I have moderate sleep apnea along with restless legs syndrome.

Was prescribed a CPAP and Trazodone. Currently taking 300mg per night. It puts me to sleep fast but I always wake up after 3 - 3.5 hours of sleep. 

After reading others comments I'm considering trying 450mg to see if that will keep me asleep.

My wife can sleep 12 hours easily. Wish I could experience sleep like hers!"