Vallergan is what it's called over here.
Zopiclone can also be an alternative..but I would only use it if you REALLY need it. It's nothing you want to get used to using. It will only make your sleep worse in the long run.
Circadin is "newcomer" which stimulates your melatonin levels in your brain and is only needs to be used for 2 weeks. It's mainly used for older people, but I have friends who have very good results from these (who are rather young..late 20ties).
Vallergan is the only one of these you can get without talking to your doctor first though..in most countries.
I just thought I'd post this since so many people suffer from sleeping disorders.
Tv in the bedroom is not good for sleep.
You can work out just before sleeping..that's more a myth than anything else. but for some it might hold some truth. Either way, taking a run some hours before sleeping might be the best to be on the safe side. Physical activity will always the best for oh so many things in the long run.
So yeah...it's just something to ponder on.