I purchased two Mistaire Ultrasonic Cool Mist Humidifiers from Wayfair.com. 
My son and I recently moved from a single family home to an apartment and the air is definitely not the same and in some aspects cannot be controlled. The air is definitely different and in our case it is
 very dry. My son and I have been waking up in the morning with dry throats and mouths. My son used his the first night and said he could tell the difference. He did not wake up with a dry mouth or throat. He likes the night light glow feature but also likes the fact he can turn it off. I finally used mine the second night we had them and I too noticed a difference similar to that of my son. I like the night light glow off and we both appreciate the quiet hum it gives off while running. Just for the record my son is 20 years old so hes not just repeating what I say or experienced. I would definitely recommend this product. It was reasonably priced, arrive really quick and is a nice size. 
Thank you