I have 2.5lb and she sleeps in her bed on the floor.
But sometime when I sleep on the couch, she is curled up next to me.
I'm not worried about her falling or squishing
, we used to sleep on bed as well but never had trouble.
I woke up every time when she needs to go patty, I don't know how I woke up but I did.
Now that she sleeps on the floor, she barks once when she goes to patty so I can clean her little butt.
I think I got maternal love!!!