I can confirm all of the above, having lived through an infestation myself. Had to ditch my dirt cheap apartment and basically throw away all of my belongings a

I can confirm all of the above, having lived through an infestation myself. Had to ditch my dirt cheap apartment and basically throw away all of my belongings at the time out of fear of bringing any of them with me to the next place ("luckily" I didn't have much at the time as I was a poor student). And then ended up spending $2000+ anyways on a full room heat treatment for my new place because I could swear I was still getting new bite marks and it was driving me insane (though in hindsight they might have been what's referred to as "phantom bites" but I wasn't going to take the chance to find out after going through that whole ordeal). Up to that point I've lived in shady places with ants, roaches and rats and other shitty stuff but none of that bothered me too much, so I thought I could handle any shitty living arrangement as long as the price was right, but the bed bugs thing was by far the most nerve wracking experience of my entire life, and even made me contemplate suicide at one point. I learned to not cheap out on a place to live ever since... And definitely never pick up used furniture lying on the sidewalk, which I used to do a lot... So yeah... I can see why people might have reservations against used mattresses...