I have never been particularly good at falling asleep and as I have exams at the moment and am more tense than normal I bought somer valerina (sp?). I have to say I am stunned by the fact that it clearly works. ironically that also makes me a bit worried - there's something not quite right about taking a tablet to get me to sleep, even if it a non-presciption one. anyone know anything about it? I had a look at all the ones available in boots btw and they're basically all the same (incluing nytol) - this valerina stuff, plus hops, and some have lemon balm in them too. do they have any long-term effects?