so.... I, uh, guess that wouldn't be a great idea to do with a yorkie, would it...?
more good logic.
Jen, i have ripped open the lining of Costco dog beds to remove the stuffing so i could wash the liner shell thing. wash, restuff & sew up incision. yes, it was a PITA but at the time it made sense - lamb bone goo went straight thru the outer shell of the bed to the stuffing liner sack thing. and the bed was brand new so it was totally worth it to salvage the bed. and, well, let's face it, i was re-stuffing dog beds on a regular basis back then b/c a certain dog of mine loved crawling around inside them.
i'm just thinking if you're up for it you could empty the stuffing of the beds into garbage bags, throw some DE in there, seal 'em up nice & tight and let them sit for a day or two. wash the liner sack thingy in super hot water, dry, restuff, stitch and no more worries about fleas. added bonus: if the beds aren't as fluffy as they were you'd have the opportunity to add more stuffing while you're at it.
the house will smell good with all that cedar floating around!