Last night, I kept waking up and hearing the ocean. It's a tricky thing, because I'm not sure if I was really hearing the ocean or only dreaming that I was hearing the ocean while I was in that middle space betwixt sleep and wake. It wasn't unpleasant; I like the sound of the ocean. I just kept getting stuck in this loop of thinking "that sounds like the ocean am I at the ocean I shouldn't be at the ocean it was raining last night maybe it's the rain that sounds like ocean zzzz" and then I'm lulled back to full sleep by the soothing ocean sounds.
When I woke up, I inspected my fan. (I sleep with a fan on.) Nothing unusual.
There was an unusual amount of sand on the floor, though.