You have to get a pest control company to do the heat treatment. If they don't do it fully you'll have to do it again.
In the short term, get some pesticide, something with pyrethrum will do. Find them and kill them with it. They're lazy so will have set up shop somewhere on your mattress, boxspring or bedframe. Once destroyed you'll need to get a mattress protector (usually used for bedwetting) and put that on your mattress. This way they won't be able to hide there.
Then, get some clear silicon caulking and seal up every gap you can find in your floors, walls etc. Put it around your outlet covers, too.
These steps will keep them at bay for a bit. Then you should move somewhere else and don't being any furniture or appliances with you.