Hotel in Osaka (near Mino)

I want to stay in Osaka 1 night because I want to take the SAT test at Osaka International School (Onohara Nishi 4-chome, Mino, Osaka). Anyone can give me an advice? As cheap as possible, but I want to have a good sleep (a clean futon and a silent place). Thank you for your help.

Nam, nearest stations of OIC are SENRI CHUO or SHIN SENRI. (You need to take a bus from there) It seems no cheap hotels are nearby. I don't know which part of Japan you are from but how about staying at ESAKA? It is only 3 stations from SENRI CHUO and on your way from Shin-Osaka.

Super Hotel Esaka
http://www.superhotel.co.jp/en/s_hotels/esaka.html

Thank you for your answer. But 3 station is a too far for me. Because SAT test is set at 8A.M and in a test students want to have their best condition you know. I'm a kind of person who can have carsick (or traveling sick) easily so I hope I can arrive test center at least 30 minutes before the test. It's best if there is such a near place that I can walk to the test center in 10 minutes. I will come from Kyoto. Thank you again:D.

I see. This is the location and access to OIC. http://www.senri.ed.jp/ois/information/where.htm
Unfortunately, there is no accommodation in a walking distance from the school. The closest one is Senri Hankyu Hotel in front of Senri Chuo station.
http://www.senri-htl.co.jp/2003_e/index.html

Nam,
did you ask the school? they may have an address, for example somebody renting rooms in their home or some ryokan that is not on the internet.