Valarian root, does great (its the root that valium comes from) or try melatonin. its the chemical our bodies secrete at night time to say "its time to sleep"

couple of things to consider. if you are waking frequently it may indicate a snoring issue. This can obstruct your airway, and you are waking up to rekick your respiratory system into working again. Sometimes we wake up to pee for the same reason. if you are exhausted beyond measure and have interrupted sleep you may need a sleep study, BUT you may want to try some breathe right strips for your nose as a low cost test to see if that helps. It holds open your nose at night and allows air to come and go more freely.

NO TV for an hour before bedtime. allow your brain receptors to know its bedtime. Constant motion and bright light from the TV and computer says WAKE UP! we need you to pay attention. Reading before bed helps a lot of folks. meditate. take a warm bath and allow your body to relax. Turn off ALL the lights in your room. If you have a bright alarm clock cover it! the light on the TV, or cable box, cover it! Make it as black as you can. This will trigger your own natural melatonin. Find time during the day to exercise. This helps you shed that cortisol from stress and keeps your adrenaline levels high. Grab a teddy bear, and cuddle up like a child.

I hope you find rest.