Sounds like most of gaf never been infested before.
Ok OP, here is what you need to do.
Buy several bottles of 91% rubbing alcoho (about 10 to 15 bottles)l, and a large spray bottle to put it in. Then buy plastic covers for both the mattress and box spring.
PUT ALL CLOTHES AND SHEETS/COVERS IN PLASTIC BAGS AND TIE THEM! Wash them before hand and put them somewhere that's bug free.
With the spray bottle, with alcohol, set to stream, spray down all furniture, mainly any dark areas and creases. If you a futon, just spray the creases of it, then tend not to be able to pierce futons.
Next, spray down your bed. Spray every single edge of the mattress and box spring. With the box spring, spray the bottom and inside. Go over this 2 or 3 times. Then place the plastic covering around the mattress and box spring and seal the FUCK out of them.
Next, where ever there is dry wall, spray the bottom of the wall where the floor and wall meet, they hide in the crease of walls.
If you have carpet, DO NOT SPRAY THE FLOOR WITH ALCOHOL ! Buy some carpet powder and vacuum thoroughly. If it's thin carpet, they can't hide in it, if it's thick, they can, but can still be pulled out by a vacuum.
If you live in an apartment, inform your landlord/super. They can come from your neighbor's place into yours. I got them when they were going under the wall from my neighbor's place to mine.
Use these tips to keep the bed bug numbers lower and make it so that you can sleep at night. Call an exterminator when you can.