How do I get my dog to stop sleeping in another room?

My dog is a papillon. She is not scared of anyone in our house. In our house, there are 5 people. Cricket, (my dog) always goes to sleep with my grandma. (#5) :D Anyway, she will only sleep on my bed in my room if the door is closed and she can't get out. Why doesn't she like my room? How do I get her to sleep with me??? :(