The Sheraton is at the airport indeed, with no need to get exposed to any outdoor weather elements. When I am not using the Sheraton CDG I’ve usually used the Hilton CDG on the cheap when needing to stay at the airport; the latter involves outside weather exposure. [I ran up a full load of nights at the HP/HH CDG this month and last month, but Hyatt is not convenient for these night arrivals at CDG.]