Yeah if you are worried about the dog use a crate or keep it out of the inner.
Our youngest camped from 6 months, and just slept on a self inflating mat, (or on the airbed next to mum mozlty as was still breast feeding). I never really though that getting something specifc for camping was either necessary or worth the money.
Grobag type baby sleeping bags are good -with little un in a fleecey babygro inside
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets