@Maggie :) this is what I did. First I bought myself some cheap new clothes. Then, after showering, washing my hair and putting on my new clothes I took everything to a "lavanderia autoservicia" (laundromat). All my stuff, including merino, silks, down sleeping bag, stuff sack containing paper credential, wallet, and passport, went into a large dryer for 20 minutes on high heat. No need to wash, in fact it is probably more effective if things are dry to start with.
118 degreesF (48C) for 20 minutes kills all bedbugs and their eggs.
I put my pack into a black plastic bag, sprayed with bed-bug effective (supposedly, the picture was on the can) insecticide, tied up the plastic bag and left it in the sun for three hours. I took the cover off my mobile phone, opened it up to expose the battery and inspected it carefully to make sure nothing was hiding inside.
When I got home, and just to be sure, I plonked my backpack with everything inside except my mobile phone, into my chest deep freeze, where I left it all for a month.