My little Shih-Tzu sleeps with us too. Don't worry about what anyone else would think about you letting your pets sleep with you. Our pets are just like our kids, they are family. My little Ozzy does not even know he is dog!
Congrats on completing your project. I know its a huge undertaking to complete a very large quilt, but now you can sleep under something you made yourself and it will sleep better than any store bought comforter any day!