We have one, but it's attached to her leash and we were letting her run free.
She's so pretty!! So loyal. So good with the kids. She sleeps with them if they are sick. If any of them are away on a sleepover or something, she sleeps outside thier bedroom door. If any of us go up for a nap, after about 15 mins or so, she nudges you to come join the rest of the family.