Many years ago I lived in Rustenburg in a wooden double story house. We had the exact same problem there. Afterwards I burned my beds and got rid of most of my furniture that day we moved. If you look at your bed mattress you will probably notice tiny red bugs in the seems. Those are the pests that eats you up at night. When I bought a house in Krugersdorp a few years ago we had to get the exterminators in to sort out the previous owners flees out. They were jumping all over the house. Couldn't miss them!

Seriously there is no other choice but to get really good exterminators in to sort the problem. Fumigating doesn't help, trust me!