We typically take a redeye from Seattle when we go to WDW and arrive at MCO anywhere from 6-8am. Last year, by the time we picked up luggage, got a ride share, traveled to YC, and checked in, in was about 8:30/9:00am. We stopped by the front desk and asked if they had anything available (no, but we were assured we could have one of the rooms ASAP--as soon as housekeeping was done). We hit DS for breakfast and when we got back, we were headed to the pool around noon when we got the text our room was ready.