We just had a wonderful experience with the disney recommended sitting service.
The company is called Kids Night Out, our sitter was spectacular.
Phone number 407-828-0920..you do need a reservation and have to place a credit card on the reservation.
They take kids from 6 weeks to 12 years old. They come to your room, of course. The do not give baths or go to the pool with the kids, but they will take them on walks, to the restaurants, etc..depending on how you want the kids fed if the sitter will be their over meal time. They ask that you provide a meal for the sitter as well.
We hired the sitter for our grandaughter..19 months old. Our son just moved here and they didn't know anyone who could sit yet. We had planned a day at epcot and then party of the senses that evening..so it was a long day for the sitter...8:15am to approx 10pm. The sitter arrived promptly, introduced herself, took care of all paperwork, phone number and rule exchanges. The sitter brought a stroller, toys, etc..man, was she prepared.
Our grandaughter took to the sitter like you wouldn't believe, and the sitter took her on walks, ate with her in the restaurants at the Beach Club. We provided two meals for the sitter since it was a long day. We were totally impressed, our grandaughter was asleep when we got in, didn't even wake up.
I would definately use this service again.
It is worth every penny.
Good luck!