Ex H has taken our two children several hours' away to visit his parents, along with his new girlfriend.
They live in a three-bed house; one single bed, two double.
My 12yo has phoned me grossed out that he's been put in a bed that his 15yo cousin had slept in the night before (if not longer than one night, he's not sure), and the sheets weren't changed. My 7yo was put on an uncomfortable sofa for the night. During the night, she was so uncomfortable that she got up and asked to be in the bed with ex and new gf. I'm not happy about that at all. He should have known she wouldn't be comfortable on the crappy sofa, and imo, the two children should have been given the double bed, new gf in single bed, and him on the sofa downstairs. He's a selfish arsehole though, so it wouldn't occur to him to think of his children before himself and new gf.
New gf is heading home tonight so my son asked his grandmother if he and his sister could sleep in the double bed tonight, and would she please wash the bedding. (Ex is out with new gf for the day showing her the nearest big city, so kids are dumped with the grandparents doing absolutely nothing, just sat in the house.
I'm not happy about that either.) Ex-mil has told my son she is too busy to wash the bedding (my son says they are just sitting about).
But my aibu is, surely it's basic hygiene when having guests to give them clean sheets???
YANBU - of course they should have clean sheets
YABU - it's not going to kill them, sleeping in used sheets, meh whatever.
Comments re the sleeping arrangements welcome too. Thank you.