Slishity Slosh
I opened my eyes
And looked up at the rain,
And it dripped in my head
And flowed into my brain,
And all that I hear as I lie in my bed
Is the slishity-slosh of the rain in my head.
I step very softly,
I walk very slow,
I can’t do a handstand—
I might overflow,
So pardon the wild crazy thing I just said—
I’m just not the same since there’s rain in my head.
— Shel Silverstein

If you are hearing the rain in your head when you wake up, you need to wear a hat to bed. Or maybe move your head and pillow to the other end of the bed. Either way, problem solved!
The rain
in Spain
falls mainly
on Pete’s brain.
Just shut the sky light.
Maybe that was not rain you heard.
By the way, you need some new windshield wipers, the one you have looks bent…