Do bed bugs go through sheets?
No, bed bugs can't bite through sheets, for the same reason they can't bite through anything else. Their mouth parts aren't designed for it. From where they hide in the cracks and folds of mattresses, they'll make their way out from underneath the sheet. How can I tell if my sheets have bed bugs? Signs of Infestation
Blood stains on your sheets or pillowcases.Dark or rusty spots of bedbug excrement on sheets and mattresses, bed clothes, and walls.