48 hours, Sara? What a GOOD buddy! My family has 3 dogs.
One of them, a Queensland Heeler, is a sweet female who stays so close to me when I have a migraine that I have stepped on her several times. When I go into my room to lie down, she follows me and just lies on the floor next to the bed. Every now and then she gets up and lays her head on the bed, just to check. If I don't notice her head, she puts a paw on the bed. I reach over and stroke her head and her neck.
My husband almost always comes in and asks if he should get the dog out and close the bedroom door. My answer is always the same. "No Honey, she's fine." I feel comforted just knowing she's there. She never leaves before I do. And the fact that she's in the room with me makes the rest of the family, including the other 2 dogs, aware of the fact that they need to be quiet. Somehow, the "word" gets out. If it gets a little noisy, my husband turns on a "white noise" machine in our bedroom that helps shut out any outside noise.
For our daughter's 6th grade science project, she did a study in which she took pictures of each of our dogs. After I taught her how, she took blood pressure of 4 people before they handled the dogs. Then each person spent 10 minutes petting a dog. Rachel took the person's blood pressure again. Everybody in the study had a significantly lower blood pressure after enjoying their time with a dog. I'm sure there are less scientific reasons for the "warm fuzzies" we get from our pets!