goudie,
In India, we all slept on "charpoys" - a roughly hewn wooden frame with (loose) mortice joints was held together with a web of coconut fibre string. You cut the string off, knocked the joints apart and dunked them in 100 octane or kerosene, then assemble and re-string. Tension will hold the joints together, but it'll wobble a bit.
That got rid of the resident livestock (which nested in the joints), but the bedbugs always came back. We just had to learn to love them. When you squash them between finger and thumb, you get a nice "almond" smell and a drop of your blood.
Don't like the iodine idea (never heard of that one, sounds labour-intensive). Perhaps if you hard-boiled and curried them ......... ?
Danny.