Organic Bedding / Blankets / Bed Sheets

I seem to suffer from a bit of a dust allergy and was thinking it would make sense to get a decent blanket for my bed to replace the synthetic, unwashable duvet I have at present. I'd like to replace it with something with anti dust mite properties etc, but still want to have the warmth in Winter so was thinking something along the lines of organic cotton/bamboo. that will be light enough to throw in the wash and dry at room termperature over a day or two but heavy enough that it will keep me warm in Winter (up to -10 Celsius can be the outside temperature). Even if I was to have two blankets on the bed it would be fine.

Just looking for any recommendations :) Lint free etc if possible too!

Hanging bedding up in good sunshine is a real help. We do this with our bedding as we are in a caravan and there is lots of dust and damp. It is really as good as washing - if not better!

Thanks for the reply. I don't have nearly any sunshine where I am unfortunately :( Summer just ended here, I think we had 6 days of sun!

I found this page. Expensive, but looks like good quality stuff: http://thenaturalsleepstore.com/organic-blankets.html

If there's anything similar in Europe, any links would be appreciated!