We listen to the ocean floor/I go blank sometimes

We listen to the ocean floor, it makes sense only if I add the word "sound", so they are listening to the sounds of the ocean floor, yes?

Her hair is silver as the moon in a Miami sky. We still pop pills, but it's not the Xanax anymore. Whenever we can't sleep, we listen to the ocean floor. She got a Sound of the Sea CD from me from the Brookstone store and ever since I've been snoring like a... like a really good metaphor for snoring. Sorry, I go blank sometimes.