I fought bed bugs once with DE, heat, and dry ice traps or you can use a co2 fish tank pump to attract them into a trap. We also placed containers filled with oil at the bottom of each bed post.
It took a year but we were successful
It took a year but we were successful
However, I assume the harsh reality says that it is nearly impossible to suffocate the entire infestation, and more than a few survivors or eggs would remain after the treatment.
I think it'd work for mild infestations, but for larger ones the heat method is really the only option.