Yes, they did reply. They said there was a nightdress that fitted the description - I had found a DKNY nightie, in grey, but not in my size - it also had longish sleeves which would be too hot for me. They did say they would feed things back to their buyers.
It's been interesting to hear from fellow forum members about this - with so many trips to hotel bathroom in the night I certainly couldn't go naked - I also would get so cold around my shoulders if the covers came away in my sleep and I'd get a ‘frozen' shoulder or back. I'm really surprised that so many of you seem fine wearing pants or shorts - just shows how different we all are with our preferences. DG x