I had to get a bigger bed as my numbers grew from 1 to 4. I don't know if they have learned to stay out of harms way or I have just quit flipping and flopping in my sleep but in the past, a few have hit the floor.. OR, that now they just learned how to pin me down by laying in key spots on top of the covers that keep me from moving around so much. I wake up several times during the night, unable to move and needing to, so I carefully have to wiggle my way out of how they have me pinned down.