Heat the clothes while you clean them- not to boiling, but close enough to making thing in there keel over, say 200-ish.

IIRC, bedbugs themselved really don't like light. Maybe taking a matress outside on a BRIGHT sunny day, and letting them bake in the sun might do it, particularly if you beat it several times to shake them up. Alcohal seems to kill lice IIRC, so maybe a spritz with isopropal will help as well.