We have 3 bedrooms but the room that used to be the guest room is now an office (crammed with electronic stuff, DH needs access to it for his work project).
DS (10 months) has his own room, with ensuite and double bed. I sleep in with him as he wakes frequently and I'm trying to sleep-train. There's no space in our room for his cot and he hates the travel cot.
We have an attic conversation under the eaves m that's more a storage room. Lots of boxes of stuff and suitcases and I dry washing up there. If I move some boxes I can make space for a double camping mat.
We have guests a lot. When PILs stay I don't mind giving up our bedroom, but I'm fed up of doing this for other guests.