Fight arrives 11 pm. I have flight next morning at 8am. Is there a transit hotel inside the Chengdu airport?

The airport hotel is on the east side of the terminal and there is hotel in the airport. If you are the VIP passengers, you can use the VIP waiting rooms in the airport to for your flight.

If you are not the VIP passengers and cannot get out of the aiport, it may be hard for you to find a hotel to have a sleep in the airport.