>>105645287only people with an allergy show signs of feeding, most people have no visible irritation from the bites. the things to check for are small bloodstains on your sheets from accidentally killing them in your sleep, or bedbug poop in the corners on the bottom side of your mattress. most feeding is done in the thinnest areas of skin like inside your elbows and knees.
>>105645364they have a sophisticated system to sense sleeping people based on their breathing and can find them from several rooms away. they will commute back and forth if they have to. as long as there is a viable path to climb your bed, you're fucked.