They're attracted to carbon dioxide (hence they wait til you're asleep and your carbon dioxide output is at its maximum, then they attack). It doesn't have to be a bed! Anything that has folds (clothing, linens, curtains, upholstered furniture) is capable of becoming home to these critters and once they're there, the item is considered infested. If you cannot guarantee no eggs / bugs are still present, then get rid of the item(s). Relying on heat alone is a possible invitation to a longer stay from the unwelcome guests.
They're attracted to carbon dioxide (hence they wait til you're asleep and your carbon dioxide output is at its maximum, then they attack). It doesn't have to be a bed! Anything that has folds (clothing, linens, curtains, upholstered furniture) is capable of becoming home to these critters and once they're there, the item is considered infested. If you cannot guarantee no eggs / bugs are still present, then get rid of the item(s). Relying on heat alone is a possible invitation to a longer stay from the unwelcome guests.