Every nursery eventually ends up with a humidifier. After going through 3 different humidifiers we found the Holmes Ultrasonic Humidifier
shaped like a bear. This simple humidifier has a half gallon removable tank with handle, which is incredibly easy to fill. It has a variable knob and when running you can actually see the mist coming out. It also has a 10-hour runtime on high, which does last most of the night for my son. I do wish the run time was closer to 12 or 14 hours but since this humidifier does not require any filters and is easy to fill, it is my favorite.