Can I stay overnight at Shanghai airport for international transfer?

17AUG13 UA198 HN LOS ANGELES, CA
I am arriving in SH for connecting with a international flight to Bangkok.
Arriving with United Airline in SH at 17:45 and the connecting of Thai Airways flight departs 7: 30AM
the following day.
If possible I would like to stay overnight at SH airport as an international transit passenger.

Is there any space where international transit passengers can stay overnight at SH airport?
I don't know if I have to check in for the connecting flight at SH airport or I will have already
a boarding pass of the connecting flight. ( I will be arriving in SH from LAX)