So for the past few months my grandparents, mother, and myself have been dealing with bedbugs. We tried just about everything we could, ranging from sprays to silica gel. Well finally after everything failed to yield anything major I finally convinced them to get a heating treatment done. We packed up everything and put it outside while they were doing this and when we got back we washed everything. Well about a week afterwards I found a small straggler, and didn't think too much of it as it wasn't fully grown, and I'd seen no other signs of them. I went ahead and washed the bag I had found it on. Well just a little bit ago I found a fully grown one on my pants that were on the ground. Does anyone have any idea how they could have survived the heat, I haven't seen any signs of them outside of those two, but I'm at my wits end idk what to do if they reform after the heat treatment. We've tried everything and I just don't know what to do. HELP ME!