I live in a house where musical beds at night is a common occurrence and my husband and I sleep apart more than we sleep together. We have adopted the "whatever gives us all the most sleep for now" motto. Hopefully a temporary measure to get us through the baby/toddler years. When we stay as a guest anywhere else we would all bunk in together in one room and expect a rubbish nights sleep but would never expect people to put themselves out to accommodate our rather antisocial sleep needs!
My husband's parents have been coming to stay with us pretty regularly. At home, they sleep in separate rooms due to FIL's snoring. We only have one guest room however when they stay with us they expect to use two bedrooms, which means that we have nowhere to escape too if one of us needs too. I ended up having to sleep on the sofa for part of the stay last time they were up as I just desperately needed some space/sleep. The last couple of times they have come to stay, I have pointedly just set up one room for them to share and closed the door to the nursery & made sure it did not look guest ready but my husband's mom just moved her stuff into there (until the midnight musical beds shuffle) without asking either of us.
If it was just once in a blue moon then I'd just get on with it but the fact that it's on a regular basis and it's the expectation that is pissing me off! I'm keen to bring it up with them but my husband does not want to ruffle feathers. He is very much of the opinion that they are are guests so we should make every effort to make them comfortable.
So should we be putting our guests comfort before our own or are their expectations for a room each unreasonable?