First be sure they are bed bugs. I know someone who thought she had them, but actually she had fleas. A friend was visiting with her dog and when she left some fleas didn't. This lady didn't have a pet and woke up with bites. With no animal blood source, she was the only available meal.
Boric acid brushed into area carpets, under furniture cushions and pet beds will work to eradicate fleas. I have treated area rugs in every room. My three dogs have never had fleas, play outside and are not treated with anything. Which reminds me...I bought a new rug recently and it needs to be powdered.