How do I get rid of Bedbugs With Household ingredients?

Hey I live in hawaii, and I currently am being plagues by bed bugs... little s. I started to sleep on an air mattress since I discovered them, and got rid of my old bed, but I'm still getting bit 5 times a night. I've no money to hire an exterminator, and I cannot afford at home pesticides either... I'm really low on cash at the moment, so can someone offer me some advice on how to deal with this? I'd like to know if any of my household ingredients can be used to combat the invaders. The infestation is not too severe yet, and I have not discovered their nest either. Help Please!