I didn't realize it was a nightmare until I woke l up

Date: 4/15/2016

I had a dream my aunt asked me to housesit while she was on vacation. The first night, things were fine—taking care of the cats, etc. As I was getting ready to go to bed (in the dream) my aunt calls me and says "oh, by the way, don't mind the thing living in the walls... He's friendly. He can't speak, but only communicate in music tones. Try listening to him." And I was like "oh lol herpa derp sure thing." So I was laid down to sleep and started to listen to the music tones going off, getting closer, and somehow I could understand/translate them. It started to ask me to do tasks, but for some reason I had to be quiet about the tasks, to "not alert anything else" and so he "could hear me doing it correctly or incorrectly." So I'd get up, and start doing the tasks, and I mess up pretty much every task—loudly. Dropping bowling balls down the stairs, that kind of thing. After every time I mess up, I go back and lay down, and I can hear the tones louder, like he's closer, and {I don't realize this until after waking up} getting angrier and angrier since I keep messing up and making noise. By the end of the dream, I could hear him enter the room itself as I was laying down , and he sounded upset, just by my head—and then my alarm went off and I woke up.