Trying to sleep

Trying to go to sleep when this pops in my head. At 1 AM, I get out of bed to write it down.

There was once a girl from Memphis, streetwise and razor sharp, you think her every smile is meant for you. Your heart bleeds, your soul cries, cause she is no longer there.
She's singing around the world, breaking hearts at every stride.
She is my love, my essence, my reason for being the man I admire and keep her in my heart.


Is this an old song I've forgotten or did my sleepy brain just compose it?


PS.  Brain continued after I went back to bed with this:
Oh sweet girl from Memphis how you break my heart in two, repeat line.
Every time I hear your voice on the radio.
I'm left all alone with the memories of our love wrapped around my heart like a blanket around my soul. How I miss you so.
I shall die tonight, looking upon your face, from the audience.
I'll scream, I'll shout, Everybody knows your name.
My sweet girl from Memphis, repeat line.

Then I finally got to go to sleep. Does this happen to anyone else? I know if I had not written this down (I took paper and pen to bed with me the 2nd time around), I've would have forgotten the whole poem.
Ah, The Adventures of Being Me.