I do not use mine as a baby monitor, but I do monitor our dog while we’re away. If you search the forum for “baby monitor” there are a number of threads discussing pros/cons of different setups. For example:
The main issue you may face is that the video/audio feed may not remain open over extended periods (overnight), so it’s best used to check in periodically or receive sound/motion notifications.
Also, regarding mounting, with the Pan Cam you will want to mount it upright to reduce strain on the motor and use the pan ability to look down rather than angling the camera down.