I don't like chemical pesticides. I have been using diatomacous earth for years on my dogs. This stuff is not a chemical, it is a kind of dirt that is ten million years old, made of tiny sea shells called diatoms. It looks like flour.
When a bug walks across diatomaceous earth, it is like a human is crawling across a floor covered with broken glass. It cuts the bugs left and right and they will bleed to death. If my dog comes back from the woods with some ticks on her, I powder her up with this stuff and the fleas are soon dead. It will kill any bugs.
So after you get rid of the mattresses etc, now that you have a vacancy, powder the place up with the diatomaceous earth and close it up for a few weeks and the bugs will all die.
https://www.amazon.com/Diatomaceous-Earth-Food-Grade-10/dp/B00025H2PY
