The one thing that helped my daughter and did not cause daytime issues was trazadone at night. Talk over options with your doctor. Benydryl is often used as OTC but not as effective and some folks do have side effects.

ANother thing she also used but can leave daytime drozzy if you take it too late is Klonopin. This is good as amuscle relaxant too. It is similar to valium.
Hope you can get sleep.,
Dianne