A humidifier includes a base having a sound machine module and a humidifier module, a water reservoir in fluid communication with the humidifier module, a user interface supported by the base, and a controller in communication with the user interface, the humidifier module, and the sound machine module. The controller is configured to operate the humidifier module to provide humidified air using water contained in the water reservoir in response to a humidifier input to the user interface. The controller is also configured to operate the sound machine module to provide sound in response to a sound input to the user interface.