This is my 2nd product purchase from Pure Enrichment, and I use this humidifier in my bedroom.  My complaint is the blue light that omits from the power button and luminates the white base.  I like to sleep in absolute darkness, and the blue glow is  cumbersome, I had to create a make-shift cover to block it.  There is even a light within the water unit portion, and with the different settings, the light and flow of air can be changed, however, that power button just omits this light, that may be  soothing for a baby or child, or for those who enjoy an ambient glow, but there should be a setting to not have any light at all.  Also, at moments a glubbing sound of water can be heard, which actually interrupts my sleep, as it adjusts the water level and intake. Overall, it does its job, but if you have preferences for your sleep you may want to consider something else.