Bed bugs are about the size of an
apple seed.
If you've got them, you need to go agro on them RIGHT NOW. You can't co-exist with them. If you don't attack them aggressively, they'll ruin your life and be impossible to get rid of. They'll hide in your walls, under the carpet, inside and under anything they can.
My brother had a rental unit that was infested when the renters moved out. They had to tear out every scrap of carpet, remove all the baseboards, fumigate, wait 30 days, fumigate again, and then hoped that they got them all. The only way to find out is to sleep in the house because the C02 in your exhaled breath is what draws them out. Basically, they slept in the house for about a week to assure that they'd killed them all. It took the better part of the summer to get rid of them.
I'm really really sorry for you if that's what you've got. How miserable. Best of luck.
"The rule of no realm is mine. But all worthy things that are in peril as the world now stands, these are my care. And for my part, I shall not wholly fail in my task if anything that passes through this night can still grow fairer or bear fruit and flower again in days to come. For I too am a steward. Did you not know?" Gandolf