Sorry i not been able to read the whole thread so apols if this redundant, but i use silk duvet.
I have huge issues with night sweats & also cant tolerate anything heavy. It's been a delight, would never go back to any of the other fillings now.
I hvae a cotton cover on it & then the coolmax duvet cover from M&S & it feels just fantastic, has never needed washing (I use a doubled up thich bath sheet towel over me to eat -so nothing gets spilled on the divet)
I've never washed it but have had it aired on a clothes line on a sunny day - UV light is a good disinfectant i think
But it
can be washed i believe, i cant remember
bought mine from
silkbeddingdirect they have a 14day no quibble guarantee for returns (provided they in same condition delivered it, so if you put a cover on it you can at least lay under it for a bit to see if you like it.
Also just FYI
QVC do a 100% money back guarantee - either 30 or 60 days, you can use it and still return after a month if it turns out not to be what you hoped it would. I have tested this on dozens of items over the yrs, to the point where if they sell something, i wont buy it elsewhere just because i know i can return it even after using it for a while - I've sent back
used pillows, half empty skin care products used for 3wks, a coat i wore a few times but decided it was really too small. They are such a good firm in that regard