Even if I had extra rooms, I'd still want them all in one room. I just think it's easier in case of an emergency and takes up less of my home. I have a daycare dedicated space but dc still creeps into other rooms of my home lol. I've only had 2-3 kids who have needed to sleep in a different room but I always try to get them back into the nap room as soon as they're ready. I've been really lucky in having great nappers though!