I'm on 300, and no, I hadn't realised I had to take it so early.
When I was first on it, I was so exhausted that I didn't want to take it too early or I'd crash. But now my body's used to it, and I know when I take it I'm still awake hours later.

In this case, I took it at nine, and here I am at nearly four in the morning...

Anyway, I'm coming off, and I'll lie and look at the ceiling if nothing else.