The air is a bit dry for me in Almaty when compared to the tropical air in Vietnam. I wake up in the middle of the night normally since my nose is dry. I am thirsty too, more then normal. Yes Almaty is not dry in comparison to Karatau, my old Peace Corps site, or northern Kazakhstan but it is still dry to me.
This humidifier I bought for about $75 USD should help make it easier to sleep. I will also put some vaseline in my nose to keep it moist.