I bought this humidifier for my classroom, which is very dry due to the heat. So far it is working like a charm. The size is perfect for my classroom and it helps to keep the room from getting stuffy. The headaches and stuffy nose are gone now that I have this running. I think it would be too big for a bedroom but you can control the amount of mist that comes out so perhaps it you keep it to a minimal it might be okay. I definitely recommend it.