Rest room or hotels at xian airport or nearby and prices for stay

Hello!
I am flying to Dhaka from Tokyo in this week and shall have a flight waiting time for 8 hours from 11:55 pm to the next morning 7:55 am. So that I need to take a little rest at the airport premises or nearby. Could you please let me know the suitable options that can help me for catching flight in the next morning at 7:55 am.
Thanking you for your advice.

Best
Rafi