The hot water tank is in a cupboard in the bathroom and she uses it to air her laundry.
That's where I took that pic.
The hinges squeel like a pig but over the years I've developed a knack to get it open quietly.
I've seen that camisole set in there before, it's only a guess but I think it's probably underwear, not nightwear.
I bought a similar style set for my wife a while back, and she just wears the camisole under her tops sometimes.
I try to take a peek in their rooms if they leave their bedroom doors open.
Her room is always very tidy, but her pj's are always on her pillow or hanging over the radiator, and they are never anything interesting.
That's why I'm guessing she wears that camisole set as underwear, because I've never seen it out.
Interesting that she wears the matching knickers though 'cos my wife only ever wears the top.