I'll be passing through Osaka next week, arriving at Itami around 6pm and then departing Kansai at mid-day the next day, and will be staying at the Sheraton Miyako.

I realize the timing of my itinerary isn't optimal for sightseeing trips (but I've visited Kobe, Himeji, Kyoto, and the castle in Osaka already), so wanted to get suggestions on the part of Osaka that is most lively to explore at night.

Thanks for any advice!