Your mind starts to drift away. Bubbles, bubbles. Floating. You are a bubble. Floating. Downstream. Just flow with the current. Bubbles, bubbles. You gently nod off to sleep.
When you awaken you are washed up onto the shore, cold and wet, and the light of a purple full moon shines down onto you.
You are about to roll over and go back to sleep when a noise alerts you. There's someone...or something else here with you.