There has not been a single study that shows that valerian is any more effective than placebo. What it actually seems to do is balance a person--make the relaxed person more nervous and the nervous person more relaxed, resulting in a net lack of effect.
Packaged with its tendencies to cause intestinal distress, it's best to use sleeping pills.
Start with something like Advil PM. It's very mild, doesn't **** you up and helps your brain shut down.
"In 2007, the manufacturer added an adverse effect warning to Advil's packaging and website informing consumers that "[Advil] may cause stomach bleeding," after the U.S. Food and Drug Administration (FDA) demanded changes."
I got that from wiki as we don't have advil here. I'll take a headache or an upset stomach over stomach bleeding anyday. Also what's the point of taking a pain reliever when she's not in pain?
Unless a psychologist/psychiatrist prescribes something then I say it's better to be safe(r) than sorry.