It's a long shot here, but try blocking off the entire area under the bed. Maybe board up the gap from the frame to the floor. Or use a staple gun and staple chicken wire or hardware cloth to the outside of the box spring so it hangs down to the ground. I'm in no way speaking from experience. It's just a suggestion here that may or may not work. Or hey, just use the space to store a lot of, "under the bed" storage boxes! I'm not sure if this will work for you. If you use wire, poke the pointy ends in, so you don't scratch yourself getting in and out of bed. We did staple chicken wire to the bottom of our couch and love seat to stop our ferrets from getting inside, and that worked like a charm. The look on my husbands face when I first suggested it, (He knew nothing about ferrets) was priceless! He said, "We have to turn the couches over and do what?!? Why!?! How come? They did !?! Are you sure? How many holes!!!" Pam [Posted in FML issue 4679]