Do you offer your bed as a sleeping spot for guests? This has always skeeved me out for some reason, so I've never offered because I personally wouldn't want to do this. But we are booked solid with guests for New Year's and I'm thinking this might be the best solution (if the couple in question is open to it!)

We have a guest room with full bed where my MIL and FIL will sleep (though they hate that it is full size and not a queen/king, we just don't have the room for a bigger bed in the room).

BIL and his wife are also visiting, BIL has a bad back and his wife is pregnant. I'm thinking of offering them our bed? Alternatively we might try to buy a sleeper sofa before they come but I know those aren't usually super comfortable either.

SIL also might come but she usually just sleeps on a couch / would be ok with an air mattress.

OR maybe we should just give them DD's twin bed and buy a trundle for it? Not sure what would be better / what most would prefer!