Depends on which baby travel bed.
The Pack 'N Play we've used off and on with various grandchildren over the past 12 years would probably fit in the aisle of that RV, between the dinette and range. If that space is too narrow, it should still fit inside the U-shape dinette, with table removed, maybe extending lengthwise into the aisle.
I don't see any other places in that floorplan where I would put a baby bed at night. Even that location is not very good, because the bed will block emergency egress for people sleeping in the back of the RV.
Something else that might work, if you can handle the reach into the bed, would be to convert the dinette to a bed, leaving the cushions off, and put the baby bed up there. That space works for my grandson's latest travel bed, which is kind of a little indoor tent with a padded floor. But he's 30 months, different needs from an infant. If that's what you mean by "baby."
The size of the bed, the size of the space, are the critical factors, both vaguely know. My youngest daughter bought a Pack 'N Play early 2012 that was about 4 inches narrower, 4 inches shorter, than the one my wife and I bought about ten years earlier.