Welcome to irv2,
This link will give you information on traveling in the winterize link.
When ever I traveled in winter months it was no different than traveling during the summer always in comfort, thats with the heat on for your comfort and your tanks below.
With your slides in winter you need to know what the weather overnight will be and if snow keep your slides in so your not delayed in morning to get moving.
Not many CG's open in winter and we stayed overnights in Cracker Barrel Restaurants having supper and breakfast until the next stop at a CB.
Enjoy your trip and safe travels.