I don't show the bedrooms. Basically they see the main floor and the basement playroom but we do not go up to the bedroom level - I sort of have an open area in the sense that the stairs go up in the middle of the house and you can sort of see around but not in the rooms.
I too used to show bedrooms but stopped it when my kids were older feeling they gave up enough and shared enough and deserved the privacy of their bedrooms. The only daycare that is in there is a packnplay in the middle of the room.
If a parent is concerned I remind them that their child will only be up there as an infant and that after that they nap on the main level. I also remind them that this a family home and not a daycare centre and that I prefer to keep a certain amount of my life private. That what colour my bedroom is or whether I have an ensuite bathroom does not effect the napping of their infant. When you put it in those terms I have only had a few parents that stil questioned it but usually I had already decided I wasn't taking them anyways because they just seemed to have a suspicious side to them and I usually suggest they might want to look into a daycare centre where there would be more adults and security around.