I've said it before but I'll say it again. On the nights my own 12.5 year old isn't here and my husband snored, I sleep on the sofa (with actual failing body including spinal cord damage) rather than infringe on my son's personal space.I found that heartbreaking too. It was so stark and soulless.
My lot loved their own spaces and I’d only venture in to hoover or retrieve stray cups and plates (and rant about the mess now and again ).