Cleaning a feather/down mattress topper??

[suznic]

I have a lovely feather & down mattress topper from The White co - it says to professionally launder but not to dry clean. My local drycleaner says they can launder for around £40 - wondering if anyone has experience of using a launderette for such an item?

thank you

I had a down duvet laundered professionally after the cat peed on it.

It came back fresh, fluffy and like new - duvet not cat.