I would go to a hotel website and pull up the map and just start clicking places near sea world. I find hotels.com to be user friendly. I think it is Residence Inn or Extended Stay that has a larger 1 or 2 bedroom option and transportation to SeaWorld. Good Luck!
I was wrong. It is Spring Hill Suites. Here is the description on website:
Escape to the SpringHill Suites Orlando at SeaWorld®, a family-friendly International Drive hotel, now an official on-site SeaWorld® hotel. Take advantage of exclusive SeaWorld® benefits such as free shuttle to all parks, free quick queue and discounts for dining and gift shops. This hotel's amenities include in-room microwaves and refrigerators, making it ideal for long-term stays. Enjoy complimentary perks such as breakfast, high speed internet and on-site parking. Experience the innovative design of an Orlando SeaWorld® hotel offering 25% larger suites than comparably priced International Drive hotel rooms. Located near the Orlando Convention Center and adjacent to Aquatica, our hotel at SeaWorld® Orlando provides free shuttle service to area attractions. Splash into the outdoor Shamu pool & Splash Zone or enjoy savory American cuisine at the SpringHill Bar & Grille. When searching for the perfect location for your next family vacation, look no further than SpringHill Suites Orlando at SeaWorld®.