about the phosphor

I know I should be telling you that I'm
A rubai - but perhaps some other time.
It sounds like work, and anyway, it's late -
Unless I sleep, I'll be too tired to rhyme.

Besides, there's plates to clear and cups to clink,
And when that's done I have to sit and think,
Since then it won't be long before I need
To sleep again and eat again and drink.
What Poetry Form Are You?