I always seem to think of poem lines to write when I am about to sleep. I think its good in my head then again it's late at night. Would it be worth getting up and writting it down or is it just "bad" writing? Sense I think of it when I'm tired.

That happens to me too, and sometimes it takes me a few minutes to get myself out of bed to quickly jot the lines down in my notebook.

I think that even if you’re tired, if you don’t write those little snippets down, then they might be lost forever. You might not remember them when you wake up. And it only takes a few seconds to write them down. So I think that yes, it is worth it to get up and write them down! :)

“At night, when the objective world has slunk back into its cavern and left dreamers to their own, there come inspirations and capabilities impossible at any less magical and quiet hour. No one knows whether or not he is a writer unless he has tried writing at night.”

-H.P. Lovecraft