The nearest hotels are Canopy by Hilton Osaka Umeda and Hotel Hankyu Respire Osaka. Each of them is within a 5 minutes’ walk from Congres Green Osaka.

Room rates are around ¥45,000 (US$303, including taxes and charges) per night per room at Canopy by Hilton Osaka Umeda and around ¥25,500 (US$172, including taxes and charges) per night per room at Hotel Hankyu Respire Osaka.
 
To book a stay, please visit the hotel’s official website to place a booking.