This is a behind the scenes look at The Brady girls bedroom set as Mike carries Cindy to bed.
(The scene is cut before they get to the bed). If you watch closely, you can see the final moments of the scene are dubbed as Susan Olsen speaks, but she is "asleep" and her lips are not moving. It also looks like Susan might be heavier than Robert Reed expected, and he grimaces as he lifts her.
See more photos here On The Set of the Brady Girls Bedroom