"At the mention of the local surfing spot, an image of moonlight on water floated into Lena's mind. Her eyes snapped open. She sat up, looking around her room. Her hoodie hung in the closet, and her sandals sat in the shoe rack, same as always. Was it all a dream? She slid her feet out from under the covers and examined them. There were grains of sand between her toes...Lena lay back down slowly. She didn't remember getting out of bed, or going downstairs, or unlocking the back door. All she remembered was the shock of finding herself on the beach."
Oh no! The poor dear is sleep walking!