See subject line. Wife recently developed a couple of welts on her leg that look an awful lot like bedbug bites (see Google images of “bedbug bites”). Only two, but the resemblance was strong enough that we dismantled our bed to see if we could spot anything. Mattress is a Tempurpedic (no nooks/crannies/padding to hide in), and there’s no boxspring; it’s a platform bed. Didn’t find any bugs, although with only two welts, if there is a bedbug problem, it’s not likely to be huge (yet).
I’ve since read that bedbugs can be so hard to find that specially trained dogs are required. Which leaves me wondering, where do the little bastards hide out during the day?
Anywhere there is fabric, and not just in the bed.
My husband had them in his apt. building before we met - when his landlord sprayed for them, they were crawling out of his shoelaces, and he never actually saw them in/on his mattress until they started coming out to die. If your mattress has any sort of cloth covering, they could easily be hiding in there.
Those pix may be specifically “bedbug bites”, but they look like any number of random insects could have done them. I live in the boonies, and I have a bug bite on my arm that looks just like that. It was done by one of the many random nasties we get here every summer. You may well not have bedbugs.
There’s a thread about bedbugs over in MPSIMS as well, FYI. Someone linked the episode of “This American Life” that I’d mentioned had a bedbug story, and it sounded like they do try to hide in anything cloth/upholstered. One sad incident was a woman who was really suffering from the bedbugs and had hoped that the latest efforts had worked. The reporter asks her a question much like this, and the woman starts looking in (IIRC) the couch, and to her dismay, finds some in there.