It's not a bad idea, but you're adding a good bit of driving time - you're going 20 minutes west of the airport the night before, and have to retrace that distance again in the morning - about 40-45 minutes extra driving time altogether. If you're arriving early enough in the day to enjoy your time at
WDW, super. If you get there so late that it's really just a place to rest your head, why bother?