The dogs are all in the “dog hallway,” which is the first floor of building 2. The walls are thin and dogs can be heard barking, especially through the connecting doors or out in the hall. But I’ve definitely stayed in must worse (AoA we could hear our neighbors’ normal volume conversations word for word). I would equate the sound bleed at SF with most apartment buildings I’ve lived in. I kept my TV on to keep my dogs from hearing the other dogs and barking back. Worked fine. I also only really noticed it during park hours. Much quieter at night, when the owners are presumably back in the room with them. I noticed it more when returning during the day to walk mine. If you are not traveling with a pet, just request not to be near any of the pet rooms and it should not be an issue for it. If you do have pets, Fwiw, we’re going back to SF in a couple weeks, again with the dogs. Found the room quality, pet area, pet fees/friendliness much more welcoming and reasonable than Disney. My dogs were happy there, but super stressed at AoA.