Update:
Ok,…read more
this is the way back.
We will stay here at The airport CDG T-3. in this Citizen M Hotel.
One of the most consistent, clean , cozy with a modern Ambience Hotels i know of.
This trip, been here twice.
i can see T-3 from the front door of this Hotel.
Not exactly next door , but less than ten with your bag.
We came here tonight planning to fly tomorrow mid morning and not have to be involved with work traffic on the RER - B train or other travelers needing to be at CDG early.
We can breakfast here or in the Terminal. Decide Tomorrow.