Seville is one of the largest tourist cities in Spain, and as a result have a large variety of accommodation services from hostels to apartments. At the city center of Seville there are more than 200 hotels for all the types of tourism.
We recommend to book a hotel or hostel near the historical center to avoid the use of car.
Due the low fares in Seville airport, probably you want to stay at other near destinations such as: Algarve, Cádiz, Jerez, Huelva.
Sleeping in the airport
Do not plan on sleeping in the airport because it is closed between 1:00am - 4:00am! They kick you out at midnight and it is a long walk to the nearest cheap motel (which is actually quite a good deal).
In Summer you can find a covered place to sleep just outside the terminal (nearby arrivals) on benches. Nights in July and August are still quite warm, so if you are going to sleep there sleeping bag is still recommended but not absolutely necessary.