"Nightclothes of the two-legged variety. Pyjamas."

If we wear wear clothes at night, it's because we're not ready for bed yet ; ).

Actually, my wife does have a few frilly decorative things that she turns up in in the evening once in a while. Generally they're the sorts of things that surround the property without obstructing the view. But they usually get scattered somewhere on the way to the bunkroom, to be picked up in the morning...