Sandy, I think there was a plumbing leak in the bathroom upstairs that caused the ceiling damage. Probably caused the moldy bedding as well. I'm sure that has been fixed now, and indoors with heat on all winter in Minnesota will again be dry, dry air.
We've been telling Pml that those tropical plants need humidity . . . but now we're trying to help 'contain' the humidity to around the plants so the whole room doesn't get moldy again.
