Two story house. Upstairs bedroom with window air-conditioner unit. She claims it is "noisy" , but it is not. It hums like a airplane ride. It is tragic to watch a person want to suffer. Me? I cannot "sleep and sweat", lol Wven if I pre-empt and cool the room, close windows while she is downstairs, once she takes the stairlift ride up, when I arrive, she has turned it off and opened the windows to let in the ninety degree air. Any suggestions?