Ok so I saw this horror movie about 5 yrs ago, it was free on demand so it must have been a bit older. It was in English. I saw it on tv. It was in color. What I remember of the plot is that a young woman had a sleeping disorder where she sleep almost all the time. Something happened where a telepathic killer ended up chained and hooded in the room next to her. He used his powers to try and kill her in her sleep, but her hero, who I believe came to her room maybe on rounds cleaning the hospital, ended up sleeping and going into her dreams and saving her. The end scene was of them asleep in each other’s arms submerged in water in a container with oxygen masks happily ever after.