Edit: Post 1 month update. I really dislike it, and now wish I hadn't tried to give this a chance as I'm outside the refund period now. Don't make the same mistake.

I bought this to combat the dry air when the heater is on. The design is inherently annoying for sleep. A bright white LED panel, blue tank light and loud beeping noise with every setting change is not desirable at night. It would definitely wake-up a baby or partner. There is a night mode which allows the front panel lights to turn off, but can only run in Auto mode. As others have noted, Auto mode runs continuously and humidity is excessive to the point mold concerns stop me using it. This is easier to control in manual mode, but then no option to turn the lights off.

I have tested this machine in all different modes and so far it’s great for cool mist although it does rise to about 75% humidity in night mode but as soon as you put it on warm mist the room fogs up and the room is 95% humidity. This has happened a number of times and has worried my husband and I because it looked like the house was on fire.

it mentions that in night mode the machine will turn to auto mode to adjust the humidity level from 40-65% depending on room temp. Guess what, this is far from reality. I had night mode on and after 3 hours the room humidity level becomes 95.. and we can see a mist in the room, just like foggy london. wow.